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15 Sep 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023056
SUBJ: SVN68 (PRN09) FORECAST OUTAGE SUMMARY JDAY 257/2352 - JDAY 258/0504
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023056
NANU DTG: 150521Z SEP 2023
REFERENCE NANU: 2023055
REF NANU DTG: 111429Z SEP 2023
SVN: 68
PRN: 09
START JDAY: 257
START TIME ZULU: 2352
START CALENDAR DATE: 14 SEP 2023
STOP JDAY: 258
STOP TIME ZULU: 0504
STOP CALENDAR DATE: 15 SEP 2023

2. CONDITION: GPS SATELLITE SVN68 (PRN09) WAS UNUSABLE ON JDAY 257
(14 SEP 2023) BEGINNING 2352 ZULU UNTIL JDAY 258 (15 SEP 2023)
ENDING 0504 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


15 Sep 2023    Urgent

From 20 Sept 2023 – UFN, the GPS Warfighter CollaborationCell (GWCC) will be utilizing the following phone numbers:

 

COMM:  719-567-2541

                  719-567-5081

 

DSN:        567-2541

                  567-5081

 

IST:         80-560-4810

                80-560-4811

 

The NIPR email, NIPR website, and SIPR email remain activeand unchanged:

 

NIPR E-Mail: GPSOperationsCenter@us.af.mil

SIPR E-Mail: usaf.schriever.50sw-nog.mbx.gpsoc@mail.smil.mil

NIPR Website: https://gps.afspc.af.mil/gpsoc/default.aspx

 

The SIPR Website will change to the below address.

SIPR Website: http://gpsoc2.afspc.af.smil.mil

 

Please let us know if you have any questions or concerns.



11 Sep 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023055
SUBJ: SVN68 (PRN09) FORECAST OUTAGE JDAY 257/2345 - JDAY 258/1145
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023055
NANU DTG: 111429Z SEP 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 68
PRN: 09
START JDAY: 257
START TIME ZULU: 2345
START CALENDAR DATE: 14 SEP 2023
STOP JDAY: 258
STOP TIME ZULU: 1145
STOP CALENDAR DATE: 15 SEP 2023

2. CONDITION: GPS SATELLITE SVN68 (PRN09) WILL BE UNUSABLE ON JDAY 257
(14 SEP 2023) BEGINNING 2345 ZULU UNTIL JDAY 258 (15 SEP 2023)
ENDING 1145 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


07 Sep 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023054
SUBJ: SVN61 (PRN02) FORECAST OUTAGE SUMMARY JDAY 250/2023 - JDAY 251/0225
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023054
NANU DTG: 080226Z SEP 2023
REFERENCE NANU: 2023053
REF NANU DTG: 011739Z SEP 2023
SVN: 61
PRN: 02
START JDAY: 250
START TIME ZULU: 2023
START CALENDAR DATE: 07 SEP 2023
STOP JDAY: 251
STOP TIME ZULU: 0225
STOP CALENDAR DATE: 08 SEP 2023

2. CONDITION: GPS SATELLITE SVN61 (PRN02) WAS UNUSABLE ON JDAY 250
(07 SEP 2023) BEGINNING 2023 ZULU UNTIL JDAY 251 (08 SEP 2023)
ENDING 0225 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


01 Sep 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023053
SUBJ: SVN61 (PRN02) FORECAST OUTAGE JDAY 250/1945 - JDAY 251/0745
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023053
NANU DTG: 011739Z SEP 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 61
PRN: 02
START JDAY: 250
START TIME ZULU: 1945
START CALENDAR DATE: 07 SEP 2023
STOP JDAY: 251
STOP TIME ZULU: 0745
STOP CALENDAR DATE: 08 SEP 2023

2. CONDITION: GPS SATELLITE SVN61 (PRN02) WILL BE UNUSABLE ON JDAY 250
(07 SEP 2023) BEGINNING 1945 ZULU UNTIL JDAY 251 (08 SEP 2023)
ENDING 0745 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


01 Sep 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023052
SUBJ: SVN58 (PRN12) FORECAST OUTAGE SUMMARY JDAY 244/0137 - JDAY 244/0726
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023052
NANU DTG: 010723Z SEP 2023
REFERENCE NANU: 2023050
REF NANU DTG: 251512Z AUG 2023
SVN: 58
PRN: 12
START JDAY: 244
START TIME ZULU: 0137
START CALENDAR DATE: 01 SEP 2023
STOP JDAY: 244
STOP TIME ZULU: 0726
STOP CALENDAR DATE: 01 SEP 2023

2. CONDITION: GPS SATELLITE SVN58 (PRN12) WAS UNUSABLE ON JDAY 244
(01 SEP 2023) BEGINNING 0137 ZULU UNTIL JDAY 244 (01 SEP 2023)
ENDING 0726 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


29 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023051
SUBJ: SVN79 (PRN28) UNUSABLE JDAY 222/2352 - JDAY 241/2304
1. NANU TYPE: UNUSABLE
NANU NUMBER: 2023051
NANU DTG: 292309Z AUG 2023
REFERENCE NANU: 2023043
REF NANU DTG: 110119Z AUG 2023
SVN: 79
PRN: 28
START JDAY: 222
START TIME ZULU: 2352
START CALENDAR DATE: 10 AUG 2023
STOP JDAY: 241
STOP TIME ZULU: 2304
STOP CALENDAR DATE: 29 AUG 2023

2. CONDITION: GPS SATELLITE SVN79 (PRN28) WAS UNUSABLE ON JDAY 222
(10 AUG 2023) BEGINNING 2352 ZULU UNTIL JDAY 241 (29 AUG 2023)
ENDING 2304 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


25 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023050
SUBJ: SVN58 (PRN12) FORECAST OUTAGE JDAY 244/0130 - JDAY 244/1330
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023050
NANU DTG: 251512Z AUG 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 58
PRN: 12
START JDAY: 244
START TIME ZULU: 0130
START CALENDAR DATE: 01 SEP 2023
STOP JDAY: 244
STOP TIME ZULU: 1330
STOP CALENDAR DATE: 01 SEP 2023

2. CONDITION: GPS SATELLITE SVN58 (PRN12) WILL BE UNUSABLE ON JDAY 244
(01 SEP 2023) BEGINNING 0130 ZULU UNTIL JDAY 244 (01 SEP 2023)
ENDING 1330 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


25 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023049
SUBJ: SVN70 (PRN32) FORECAST OUTAGE SUMMARY JDAY 237/0234 - JDAY 237/0740
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023049
NANU DTG: 250747Z AUG 2023
REFERENCE NANU: 2023045
REF NANU DTG: 171816Z AUG 2023
SVN: 70
PRN: 32
START JDAY: 237
START TIME ZULU: 0234
START CALENDAR DATE: 25 AUG 2023
STOP JDAY: 237
STOP TIME ZULU: 0740
STOP CALENDAR DATE: 25 AUG 2023

2. CONDITION: GPS SATELLITE SVN70 (PRN32) WAS UNUSABLE ON JDAY 237
(25 AUG 2023) BEGINNING 0234 ZULU UNTIL JDAY 237 (25 AUG 2023)
ENDING 0740 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


23 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023048
SUBJ: SVN55 (PRN15) UNUSABLE JDAY 234/1611 - JDAY 235/1446
1. NANU TYPE: UNUSABLE
NANU NUMBER: 2023048
NANU DTG: 231449Z AUG 2023
REFERENCE NANU: 2023047
REF NANU DTG: 221631Z AUG 2023
SVN: 55
PRN: 15
START JDAY: 234
START TIME ZULU: 1611
START CALENDAR DATE: 22 AUG 2023
STOP JDAY: 235
STOP TIME ZULU: 1446
STOP CALENDAR DATE: 23 AUG 2023

2. CONDITION: GPS SATELLITE SVN55 (PRN15) WAS UNUSABLE ON JDAY 234
(22 AUG 2023) BEGINNING 1611 ZULU UNTIL JDAY 235 (23 AUG 2023)
ENDING 1446 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


22 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023047
SUBJ: SVN55 (PRN15) UNUSABLE JDAY 234/1611 - UNTIL FURTHER NOTICE
1. NANU TYPE: UNUSUFN
NANU NUMBER: 2023047
NANU DTG: 221631Z AUG 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 55
PRN: 15
START JDAY: 234
START TIME ZULU: 1611
START CALENDAR DATE: 22 AUG 2023
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN55 (PRN15) WAS UNUSABLE ON JDAY 234
(22 AUG 2023) BEGINNING 1611 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


18 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023046
SUBJ: SVN44 (PRN22) USABLE JDAY 230/1605
1. NANU TYPE: USABINIT
NANU NUMBER: 2023046
NANU DTG: 181624Z AUG 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 44
PRN: 22
START JDAY: 230
START TIME ZULU: 1605
START CALENDAR DATE: 18 AUG 2023
STOP JDAY: N/A
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN44 (PRN22) WAS USABLE AS OF JDAY 230
(18 AUG 2023) BEGINNING 1605 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


17 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023045
SUBJ: SVN70 (PRN32) FORECAST OUTAGE JDAY 237/0230 - JDAY 237/1430
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023045
NANU DTG: 171816Z AUG 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 70
PRN: 32
START JDAY: 237
START TIME ZULU: 0230
START CALENDAR DATE: 25 AUG 2023
STOP JDAY: 237
STOP TIME ZULU: 1430
STOP CALENDAR DATE: 25 AUG 2023

2. CONDITION: GPS SATELLITE SVN70 (PRN32) WILL BE UNUSABLE ON JDAY 237
(25 AUG 2023) BEGINNING 0230 ZULU UNTIL JDAY 237 (25 AUG 2023)
ENDING 1430 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


10 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023044
SUBJ: SVN63 (PRN01) DECOMMISSIONING JDAY 222/2200
1. NANU TYPE: DECOM
NANU NUMBER: 2023044
NANU DTG: 110123Z AUG 2023
REFERENCE NANU: 2023036
REF NANU DTG: 101020Z JUL 2023
SVN: 63
PRN: 01
UNUSABLE START JDAY: 191
UNUSABLE START TIME ZULU: 1020
UNUSABLE START CALENDAR DATE: 10 JUL 2023
DECOMMISSIONING START JDAY: 222
DECOMMISSIONING START TIME ZULU: 2200
DECOMMISSIONING START CALENDAR DATE: 10 AUG 2023

2. CONDITION: GPS SATELLITE SVN63 (PRN01) WAS UNUSABLE AS OF JDAY 191 (10 JUL 2023)
AND REMOVED FROM THE GPS CONSTELLATION ON JDAY 222 (10 AUG 2023).

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


10 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023043
SUBJ: SVN79 (PRN28) UNUSABLE JDAY 222/2352 - UNTIL FURTHER NOTICE
1. NANU TYPE: UNUSUFN
NANU NUMBER: 2023043
NANU DTG: 110119Z AUG 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 79
PRN: 28
START JDAY: 222
START TIME ZULU: 2352
START CALENDAR DATE: 10 AUG 2023
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN79 (PRN28) WAS UNUSABLE ON JDAY 222
(10 AUG 2023) BEGINNING 2352 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


09 Aug 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023042 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
On approximately 14 AUG 2023, SVN44 will resume transmitting L-band utilizing PRN22.

On 10 AUG 2023, GPS will transition SVN44 (PRN22) into the broadcast almanac for all satellites. The almanac transition, accomplished one satellite at a time, will require approximately 24 hours to complete. Before, during, and after transition SVN44 (PRN22) will remain unusable until further notice. Future NANUs will notify users of any changes to the above stated status.
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Jul 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023041
SUBJ: SVN64 (PRN30) FORECAST OUTAGE SUMMARY JDAY 195/0148 - JDAY 195/0659
1.     NANU TYPE: FCSTSUMM
       NANU NUMBER: 2023041
       NANU DTG: 140707Z JUL 2023
       REFERENCE NANU: 2023035
       REF NANU DTG: 071747Z JUL 2023
       SVN: 64
       PRN: 30
       START JDAY: 195
       START TIME ZULU: 0148
       START CALENDAR DATE: 14 JUL 2023
       STOP JDAY: 195
       STOP TIME ZULU: 0659
       STOP CALENDAR DATE: 14 JUL 2023

2.  CONDITION: GPS SATELLITE SVN64 (PRN30) WAS UNUSABLE ON JDAY 195
    (14 JUL 2023) BEGINNING 0148 ZULU UNTIL JDAY 195 (14 JUL 2023)
    ENDING 0659 ZULU.

3.  POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
    MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
    COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL 
    MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
   JSPOCCOMBATOPS@US.AF.MIL


14 Jul 2023   

From 14 July 2023 – UFN, the GPS Warfighter CollaborationCell (GWCC) will be utilizing the following phone numbers:

 

COMM:  719-567-2541

719-567-5081

 

DSN:        567-2541

567-5081

 

IST:        80-560-4810

80-560-4811

 

The NIPR email, NIPR website, and SIPR email remain activeand unchanged:

 

NIPR E-Mail: GPSOperationsCenter@us.af.mil

SIPR E-Mail: usaf.schriever.50sw-nog.mbx.gpsoc@mail.smil.mil

NIPR Website: https://gps.afspc.af.mil/gpsoc/default.aspx

SIPR Website: http://gpsoc.afspc.af.smil.mil

 

Please let us know if you have any questions or concerns.

 



10 Jul 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023038
SUBJ: SVN79 (PRN28) UNUSABLE JDAY 191/1110 - JDAY 191/1649
1. NANU TYPE: UNUSABLE
NANU NUMBER: 2023038
NANU DTG: 101655Z JUL 2023
REFERENCE NANU: 2023037
REF NANU DTG: 101125Z JUL 2023
SVN: 79
PRN: 28
START JDAY: 191
START TIME ZULU: 1110
START CALENDAR DATE: 10 JUL 2023
STOP JDAY: 191
STOP TIME ZULU: 1649
STOP CALENDAR DATE: 10 JUL 2023

2. CONDITION: GPS SATELLITE SVN79 (PRN28) WAS UNUSABLE ON JDAY 191
(10 JUL 2023) BEGINNING 1110 ZULU UNTIL JDAY 191 (10 JUL 2023)
ENDING 1649 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


10 Jul 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023037
SUBJ: SVN79 (PRN28) UNUSABLE JDAY 191/1110 - UNTIL FURTHER NOTICE
1. NANU TYPE: UNUSUFN
NANU NUMBER: 2023037
NANU DTG: 101125Z JUL 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 79
PRN: 28
START JDAY: 191
START TIME ZULU: 1110
START CALENDAR DATE: 10 JUL 2023
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN79 (PRN28) WAS UNUSABLE ON JDAY 191
(10 JUL 2023) BEGINNING 1110 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


10 Jul 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023036
SUBJ: SVN63 (PRN01) UNUSABLE JDAY 191/1020 - UNTIL FURTHER NOTICE
1. NANU TYPE: UNUSUFN
NANU NUMBER: 2023036
NANU DTG: 101020Z JUL 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 63
PRN: 01
START JDAY: 191
START TIME ZULU: 1020
START CALENDAR DATE: 10 JUL 2023
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN63 (PRN01) WAS UNUSABLE ON JDAY 191
(10 JUL 2023) BEGINNING 1020 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


10 Jul 2023   

From 10 July 2023 – 14 July 2023, the GPS WarfighterCollaboration Cell (GWCC) will be utilizing the following alternate phonenumbers:

 

COMM:  805-605-2679

805-605-2701

 

DSN:        275-2679

275-2701

 

IST:        80-276-3815

80-276-3816

 

The NIPR email, NIPR website, and SIPR email remain activeand unchanged:

 

NIPR E-Mail: GPSOperationsCenter@us.af.mil

SIPR E-Mail: usaf.schriever.50sw-nog.mbx.gpsoc@mail.smil.mil

NIPR Website: https://gps.afspc.af.mil/gpsoc/default.aspx

 

The SIPR Website will change to the below address.

SIPR Website: http://gpsoc2.afspc.af.smil.mil

 

Please let us know if you have any questions or concerns.



07 Jul 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023035
SUBJ: SVN64 (PRN30) FORECAST OUTAGE JDAY 195/0145 - JDAY 195/1345
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023035
NANU DTG: 071747Z JUL 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 64
PRN: 30
START JDAY: 195
START TIME ZULU: 0145
START CALENDAR DATE: 14 JUL 2023
STOP JDAY: 195
STOP TIME ZULU: 1345
STOP CALENDAR DATE: 14 JUL 2023

2. CONDITION: GPS SATELLITE SVN64 (PRN30) WILL BE UNUSABLE ON JDAY 195
(14 JUL 2023) BEGINNING 0145 ZULU UNTIL JDAY 195 (14 JUL 2023)
ENDING 1345 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


06 Jul 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023034
SUBJ: SVN53 (PRN17) FORECAST OUTAGE SUMMARY JDAY 187/2117 - JDAY 188/0339
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023034
NANU DTG: 070342Z JUL 2023
REFERENCE NANU: 2023033
REF NANU DTG: 301523Z JUN 2023
SVN: 53
PRN: 17
START JDAY: 187
START TIME ZULU: 2117
START CALENDAR DATE: 06 JUL 2023
STOP JDAY: 188
STOP TIME ZULU: 0339
STOP CALENDAR DATE: 07 JUL 2023

2. CONDITION: GPS SATELLITE SVN53 (PRN17) WAS UNUSABLE ON JDAY 187
(06 JUL 2023) BEGINNING 2117 ZULU UNTIL JDAY 188 (07 JUL 2023)
ENDING 0339 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


01 Jul 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023033
SUBJ: SVN53 (PRN17) FORECAST OUTAGE JDAY 187/2115 - JDAY 188/0915
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023033
NANU DTG: 301523Z JUN 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 53
PRN: 17
START JDAY: 187
START TIME ZULU: 2115
START CALENDAR DATE: 06 JUL 2023
STOP JDAY: 188
STOP TIME ZULU: 0915
STOP CALENDAR DATE: 07 JUL 2023

2. CONDITION: GPS SATELLITE SVN53 (PRN17) WILL BE UNUSABLE ON JDAY 187
(06 JUL 2023) BEGINNING 2115 ZULU UNTIL JDAY 188 (07 JUL 2023)
ENDING 0915 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


30 Jun 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023032
SUBJ: SVN78 (PRN11) FORECAST OUTAGE SUMMARY JDAY 181/0528 - JDAY 181/1134
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023032
NANU DTG: 301152Z JUN 2023
REFERENCE NANU: 2023031
REF NANU DTG: 222003Z JUN 2023
SVN: 78
PRN: 11
START JDAY: 181
START TIME ZULU: 0528
START CALENDAR DATE: 30 JUN 2023
STOP JDAY: 181
STOP TIME ZULU: 1134
STOP CALENDAR DATE: 30 JUN 2023

2. CONDITION: GPS SATELLITE SVN78 (PRN11) WAS UNUSABLE ON JDAY 181
(30 JUN 2023) BEGINNING 0528 ZULU UNTIL JDAY 181 (30 JUN 2023)
ENDING 1134 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


22 Jun 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023031
SUBJ: SVN78 (PRN11) FORECAST OUTAGE JDAY 181/0515 - JDAY 181/1715
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023031
NANU DTG: 222003Z JUN 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 78
PRN: 11
START JDAY: 181
START TIME ZULU: 0515
START CALENDAR DATE: 30 JUN 2023
STOP JDAY: 181
STOP TIME ZULU: 1715
STOP CALENDAR DATE: 30 JUN 2023

2. CONDITION: GPS SATELLITE SVN78 (PRN11) WILL BE UNUSABLE ON JDAY 181
(30 JUN 2023) BEGINNING 0515 ZULU UNTIL JDAY 181 (30 JUN 2023)
ENDING 1715 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


08 Jun 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023030
SUBJ: SVN61 (PRN02) FORECAST OUTAGE SUMMARY JDAY 159/1934 - JDAY 160/0212
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023030
NANU DTG: 090214Z JUN 2023
REFERENCE NANU: 2023029
REF NANU DTG: 051539Z JUN 2023
SVN: 61
PRN: 02
START JDAY: 159
START TIME ZULU: 1934
START CALENDAR DATE: 08 JUN 2023
STOP JDAY: 160
STOP TIME ZULU: 0212
STOP CALENDAR DATE: 09 JUN 2023

2. CONDITION: GPS SATELLITE SVN61 (PRN02) WAS UNUSABLE ON JDAY 159
(08 JUN 2023) BEGINNING 1934 ZULU UNTIL JDAY 160 (09 JUN 2023)
ENDING 0212 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


05 Jun 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023029
SUBJ: SVN61 (PRN02) FORECAST OUTAGE JDAY 159/1915 - JDAY 160/1915
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023029
NANU DTG: 051539Z JUN 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 61
PRN: 02
START JDAY: 159
START TIME ZULU: 1915
START CALENDAR DATE: 08 JUN 2023
STOP JDAY: 160
STOP TIME ZULU: 1915
STOP CALENDAR DATE: 09 JUN 2023

2. CONDITION: GPS SATELLITE SVN61 (PRN02) WILL BE UNUSABLE ON JDAY 159
(08 JUN 2023) BEGINNING 1915 ZULU UNTIL JDAY 160 (09 JUN 2023)
ENDING 1915 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Jun 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023028
SUBJ: SVN52 (PRN31) FORECAST OUTAGE SUMMARY JDAY 153/1332 - JDAY 153/2024
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023028
NANU DTG: 022034Z JUN 2023
REFERENCE NANU: 2023027
REF NANU DTG: 251625Z MAY 2023
SVN: 52
PRN: 31
START JDAY: 153
START TIME ZULU: 1332
START CALENDAR DATE: 02 JUN 2023
STOP JDAY: 153
STOP TIME ZULU: 2024
STOP CALENDAR DATE: 02 JUN 2023

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WAS UNUSABLE ON JDAY 153
(02 JUN 2023) BEGINNING 1332 ZULU UNTIL JDAY 153 (02 JUN 2023)
ENDING 2024 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


25 May 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023027
SUBJ: SVN52 (PRN31) FORECAST OUTAGE JDAY 153/1330 - JDAY 154/0130
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023027
NANU DTG: 251625Z MAY 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 52
PRN: 31
START JDAY: 153
START TIME ZULU: 1330
START CALENDAR DATE: 02 JUN 2023
STOP JDAY: 154
STOP TIME ZULU: 0130
STOP CALENDAR DATE: 03 JUN 2023

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WILL BE UNUSABLE ON JDAY 153
(02 JUN 2023) BEGINNING 1330 ZULU UNTIL JDAY 154 (03 JUN 2023)
ENDING 0130 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


19 May 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023026
SUBJ: SVN51 (PRN20) FORECAST OUTAGE SUMMARY JDAY 138/2243 - JDAY 139/0444
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023026
NANU DTG: 190447Z MAY 2023
REFERENCE NANU: 2023025
REF NANU DTG: 121620Z MAY 2023
SVN: 51
PRN: 20
START JDAY: 138
START TIME ZULU: 2243
START CALENDAR DATE: 18 MAY 2023
STOP JDAY: 139
STOP TIME ZULU: 0444
STOP CALENDAR DATE: 19 MAY 2023

2. CONDITION: GPS SATELLITE SVN51 (PRN20) WAS UNUSABLE ON JDAY 138
(18 MAY 2023) BEGINNING 2243 ZULU UNTIL JDAY 139 (19 MAY 2023)
ENDING 0444 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


12 May 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023025
SUBJ: SVN51 (PRN20) FORECAST OUTAGE JDAY 138/2230 - JDAY 139/1030
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023025
NANU DTG: 121620Z MAY 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 51
PRN: 20
START JDAY: 138
START TIME ZULU: 2230
START CALENDAR DATE: 18 MAY 2023
STOP JDAY: 139
STOP TIME ZULU: 1030
STOP CALENDAR DATE: 19 MAY 2023

2. CONDITION: GPS SATELLITE SVN51 (PRN20) WILL BE UNUSABLE ON JDAY 138
(18 MAY 2023) BEGINNING 2230 ZULU UNTIL JDAY 139 (19 MAY 2023)
ENDING 1030 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


29 Apr 2023   

The GPS Warfighter Collaboration Cell (GWCC) is returningto our standard operational phone numbers. For your reference, see the contactinformation below:

 

 

 

COMM:  719-567-2541

 

719-567-5180

 

 

 

DSN:560-2541

 

560-5180

 

 

 

IST:80-560-4810

 

80-560-4811

 

 

 

The NIPR and SIPR Websites and email addresses remainactive and unchanged:

 

 

 

NIPR E-Mail: GPSOperationsCenter@us.af.mil<mailto:GPSOperationsCenter@us.af.mil>

 

SIPR E-Mail:usaf.schriever.50sw-nog.mbx.gpsoc@mail.smil.mil<mailto:usaf.schriever.50sw-nog.mbx.gpsoc@mail.smil.mil>

 

NIPR Website: https://gps.afspc.af.mil/gpsoc/default.aspx

 

SIPR Website: http://gpsoc.afspc.af.smil.mil

 

 

 

Please let us know if you have any questions orconcerns. 


25 Apr 2023   

From 26 Apr 2023 – 30 Apr 2023, the GPS Warfighter Collaboration Cell (GWCC) will be utilizing the following alternate phone numbers:

 

COMM:    805-605-2679

                 805-605-2701

 

DSN:        275-2679

                  275-2701

IST:         80-276-3815

                80-276-3816

 

 

The NIPR email, NIPR website, and SIPR email remain active and unchanged

NIPR E-Mail: GPSOperationsCenter@us.af.mil <mailto:GPSOperationsCenter@us.af.mil>

SIPR E-Mail: usaf.schriever.50sw-nog.mbx.gpsoc@mail.smil.mil <mailto:usaf.schriever.50sw-nog.mbx.gpsoc@mail.smil.mil>

NIPR Website: https://gps.afspc.af.mil/gpsoc/default.aspx

 

The SIPR Website will change to the below address.

SIPR Website: http://gpsoc2.afspc.af.smil.mil



19 Apr 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023024
SUBJ: SVN79 (PRN28) UNUSABLE JDAY 109/1445 - JDAY 109/2221
1. NANU TYPE: UNUSABLE
NANU NUMBER: 2023024
NANU DTG: 192216Z APR 2023
REFERENCE NANU: 2023023
REF NANU DTG: 191454Z APR 2023
SVN: 79
PRN: 28
START JDAY: 109
START TIME ZULU: 1445
START CALENDAR DATE: 19 APR 2023
STOP JDAY: 109
STOP TIME ZULU: 2221
STOP CALENDAR DATE: 19 APR 2023

2. CONDITION: GPS SATELLITE SVN79 (PRN28) WAS UNUSABLE ON JDAY 109
(19 APR 2023) BEGINNING 1445 ZULU UNTIL JDAY 109 (19 APR 2023)
ENDING 2221 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


19 Apr 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023023
SUBJ: SVN79 (PRN28) UNUSABLE JDAY 109/1445 - UNTIL FURTHER NOTICE
1. NANU TYPE: UNUSUFN
NANU NUMBER: 2023023
NANU DTG: 191454Z APR 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 79
PRN: 28
START JDAY: 109
START TIME ZULU: 1445
START CALENDAR DATE: 19 APR 2023
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN79 (PRN28) WAS UNUSABLE ON JDAY 109
(19 APR 2023) BEGINNING 1445 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


13 Apr 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023022
SUBJ: SVN57 (PRN29) FORECAST OUTAGE SUMMARY JDAY 103/1948 - JDAY 104/0207
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023022
NANU DTG: 140208Z APR 2023
REFERENCE NANU: 2023021
REF NANU DTG: 071800Z APR 2023
SVN: 57
PRN: 29
START JDAY: 103
START TIME ZULU: 1948
START CALENDAR DATE: 13 APR 2023
STOP JDAY: 104
STOP TIME ZULU: 0207
STOP CALENDAR DATE: 14 APR 2023

2. CONDITION: GPS SATELLITE SVN57 (PRN29) WAS UNUSABLE ON JDAY 103
(13 APR 2023) BEGINNING 1948 ZULU UNTIL JDAY 104 (14 APR 2023)
ENDING 0207 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


07 Apr 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023021
SUBJ: SVN57 (PRN29) FORECAST OUTAGE JDAY 103/1915 - JDAY 104/0715
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023021
NANU DTG: 071800Z APR 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 57
PRN: 29
START JDAY: 103
START TIME ZULU: 1915
START CALENDAR DATE: 13 APR 2023
STOP JDAY: 104
STOP TIME ZULU: 0715
STOP CALENDAR DATE: 14 APR 2023

2. CONDITION: GPS SATELLITE SVN57 (PRN29) WILL BE UNUSABLE ON JDAY 103
(13 APR 2023) BEGINNING 1915 ZULU UNTIL JDAY 104 (14 APR 2023)
ENDING 0715 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


06 Apr 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023020
SUBJ: SVN61 (PRN02) FORECAST OUTAGE SUMMARY JDAY 096/1034 - JDAY 096/1818
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023020
NANU DTG: 061827Z APR 2023
REFERENCE NANU: 2023019
REF NANU DTG: 032255Z APR 2023
SVN: 61
PRN: 02
START JDAY: 096
START TIME ZULU: 1034
START CALENDAR DATE: 06 APR 2023
STOP JDAY: 096
STOP TIME ZULU: 1818
STOP CALENDAR DATE: 06 APR 2023

2. CONDITION: GPS SATELLITE SVN61 (PRN02) WAS UNUSABLE ON JDAY 096
(06 APR 2023) BEGINNING 1034 ZULU UNTIL JDAY 096 (06 APR 2023)
ENDING 1818 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


06 Apr 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023019
SUBJ: SVN61 (PRN02) FORECAST OUTAGE JDAY 096/1030 - JDAY 097/1030
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023019
NANU DTG: 032255Z APR 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 61
PRN: 02
START JDAY: 096
START TIME ZULU: 1030
START CALENDAR DATE: 06 APR 2023
STOP JDAY: 097
STOP TIME ZULU: 1030
STOP CALENDAR DATE: 07 APR 2023

2. CONDITION: GPS SATELLITE SVN61 (PRN02) WILL BE UNUSABLE ON JDAY 096
(06 APR 2023) BEGINNING 1030 ZULU UNTIL JDAY 097 (07 APR 2023)
ENDING 1030 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


06 Apr 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023018
SUBJ: SVN48 (PRN07) FORECAST OUTAGE SUMMARY JDAY 068/2149 - JDAY 069/0342
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023018
NANU DTG: 100354Z MAR 2023
REFERENCE NANU: 2023017
REF NANU DTG: 022023Z MAR 2023
SVN: 48
PRN: 07
START JDAY: 068
START TIME ZULU: 2149
START CALENDAR DATE: 09 MAR 2023
STOP JDAY: 069
STOP TIME ZULU: 0342
STOP CALENDAR DATE: 10 MAR 2023

2. CONDITION: GPS SATELLITE SVN48 (PRN07) WAS UNUSABLE ON JDAY 068
(09 MAR 2023) BEGINNING 2149 ZULU UNTIL JDAY 069 (10 MAR 2023)
ENDING 0342 ZULU.


3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Mar 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023017
SUBJ: SVN48 (PRN07) FORECAST OUTAGE JDAY 068/2145 - JDAY 069/0945
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023017
NANU DTG: 022023Z MAR 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 48
PRN: 07
START JDAY: 068
START TIME ZULU: 2145
START CALENDAR DATE: 09 MAR 2023
STOP JDAY: 069
STOP TIME ZULU: 0945
STOP CALENDAR DATE: 10 MAR 2023

2. CONDITION: GPS SATELLITE SVN48 (PRN07) WILL BE UNUSABLE ON JDAY 068
(09 MAR 2023) BEGINNING 2145 ZULU UNTIL JDAY 069 (10 MAR 2023)
ENDING 0945 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


28 Feb 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023016
SUBJ: SVN52 (PRN31) FORECAST OUTAGE SUMMARY JDAY 059/0015 - JDAY 059/1019
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023016
NANU DTG: 281020Z FEB 2023
REFERENCE NANU: 2023015
REF NANU DTG: 221711Z FEB 2023
SVN: 52
PRN: 31
START JDAY: 059
START TIME ZULU: 0015
START CALENDAR DATE: 28 FEB 2023
STOP JDAY: 059
STOP TIME ZULU: 1019
STOP CALENDAR DATE: 28 FEB 2023

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WAS UNUSABLE ON JDAY 059
(28 FEB 2023) BEGINNING 0015 ZULU UNTIL JDAY 059 (28 FEB 2023)
ENDING 1019 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


22 Feb 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023015
SUBJ: SVN52 (PRN31) FORECAST OUTAGE JDAY 059/0015 - JDAY 060/0015
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023015
NANU DTG: 221711Z FEB 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 52
PRN: 31
START JDAY: 059
START TIME ZULU: 0015
START CALENDAR DATE: 28 FEB 2023
STOP JDAY: 060
STOP TIME ZULU: 0015
STOP CALENDAR DATE: 01 MAR 2023

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WILL BE UNUSABLE ON JDAY 059
(28 FEB 2023) BEGINNING 0015 ZULU UNTIL JDAY 060 (01 MAR 2023)
ENDING 0015 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


16 Feb 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023014
SUBJ: SVN56 (PRN16) FORECAST OUTAGE SUMMARY JDAY 047/2152 - JDAY 048/0329
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023014
NANU DTG: 170332Z FEB 2023
REFERENCE NANU: 2023012
REF NANU DTG: 101757Z FEB 2023
SVN: 56
PRN: 16
START JDAY: 047
START TIME ZULU: 2152
START CALENDAR DATE: 16 FEB 2023
STOP JDAY: 048
STOP TIME ZULU: 0329
STOP CALENDAR DATE: 17 FEB 2023

2. CONDITION: GPS SATELLITE SVN56 (PRN16) WAS UNUSABLE ON JDAY 047
(16 FEB 2023) BEGINNING 2152 ZULU UNTIL JDAY 048 (17 FEB 2023)
ENDING 0329 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


16 Feb 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023013
SUBJ: SVN79 (PRN28) USABLE JDAY 047/2056
1. NANU TYPE: USABINIT
NANU NUMBER: 2023013
NANU DTG: 162111Z FEB 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 79
PRN: 28
START JDAY: 047
START TIME ZULU: 2056
START CALENDAR DATE: 16 FEB 2023
STOP JDAY: N/A
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN79 (PRN28) WAS USABLE AS OF JDAY 047
(16 FEB 2023) BEGINNING 2056 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


10 Feb 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023012
SUBJ: SVN56 (PRN16) FORECAST OUTAGE JDAY 047/2130 - JDAY 048/0930
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023012
NANU DTG: 101757Z FEB 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 56
PRN: 16
START JDAY: 047
START TIME ZULU: 2130
START CALENDAR DATE: 16 FEB 2023
STOP JDAY: 048
STOP TIME ZULU: 0930
STOP CALENDAR DATE: 17 FEB 2023

2. CONDITION: GPS SATELLITE SVN56 (PRN16) WILL BE UNUSABLE ON JDAY 047
(16 FEB 2023) BEGINNING 2130 ZULU UNTIL JDAY 048 (17 FEB 2023)
ENDING 0930 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Feb 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023011
SUBJ: SVN63 (PRN01) UNUSABLE JDAY 028/1500 - JDAY 033/2222
1. NANU TYPE: UNUSABLE
NANU NUMBER: 2023011
NANU DTG: 022240Z FEB 2023
REFERENCE NANU: 2023010
REF NANU DTG: 281541Z JAN 2023
SVN: 63
PRN: 01
START JDAY: 028
START TIME ZULU: 1500
START CALENDAR DATE: 28 JAN 2023
STOP JDAY: 033
STOP TIME ZULU: 2222
STOP CALENDAR DATE: 02 FEB 2023

2. CONDITION: GPS SATELLITE SVN63 (PRN01) WAS UNUSABLE ON JDAY 028
(28 JAN 2023) BEGINNING 1500 ZULU UNTIL JDAY 033 (02 FEB 2023)
ENDING 2222 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


28 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023010
SUBJ: SVN63 (PRN01) UNUSABLE JDAY 028/1500 - UNTIL FURTHER NOTICE
1. NANU TYPE: UNUSUFN
NANU NUMBER: 2023010
NANU DTG: 281541Z JAN 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 63
PRN: 01
START JDAY: 028
START TIME ZULU: 1500
START CALENDAR DATE: 28 JAN 2023
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN63 (PRN01) WAS UNUSABLE ON JDAY 028
(28 JAN 2023) BEGINNING 1500 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


26 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023009
SUBJ: SVN62 (PRN25) FORECAST OUTAGE SUMMARY JDAY 026/1535 - JDAY 026/2123
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023009
NANU DTG: 262121Z JAN 2023
REFERENCE NANU: 2023004
REF NANU DTG: 202227Z JAN 2023
SVN: 62
PRN: 25
START JDAY: 026
START TIME ZULU: 1535
START CALENDAR DATE: 26 JAN 2023
STOP JDAY: 026
STOP TIME ZULU: 2123
STOP CALENDAR DATE: 26 JAN 2023

2. CONDITION: GPS SATELLITE SVN62 (PRN25) WAS UNUSABLE ON JDAY 026
(26 JAN 2023) BEGINNING 1535 ZULU UNTIL JDAY 026 (26 JAN 2023)
ENDING 2123 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


26 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023008
SUBJ: SVN63 (PRN01) UNUSABLE JDAY 025/1600 - JDAY 026/1541
1. NANU TYPE: UNUSABLE
NANU NUMBER: 2023008
NANU DTG: 261543Z JAN 2023
REFERENCE NANU: 2023005
REF NANU DTG: 251629Z JAN 2023
SVN: 63
PRN: 01
START JDAY: 025
START TIME ZULU: 1600
START CALENDAR DATE: 25 JAN 2023
STOP JDAY: 026
STOP TIME ZULU: 1541
STOP CALENDAR DATE: 26 JAN 2023

2. CONDITION: GPS SATELLITE SVN63 (PRN01) WAS UNUSABLE ON JDAY 025
(25 JAN 2023) BEGINNING 1600 ZULU UNTIL JDAY 026 (26 JAN 2023)
ENDING 1541 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


25 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023007
SUBJ: SVN79 (PRN28) LAUNCH JDAY 018
1. NANU TYPE: LAUNCH
NANU NUMBER: 2023007
NANU DTG: 260004Z JAN 2023
SVN: 79
PRN: 28
LAUNCH JDAY: 018
LAUNCH TIME ZULU: 1224

2. GPS SATELLITE SVN79 (PRN28) WAS LAUNCHED ON JDAY 018.
A USABINIT NANU WILL BE SENT WHEN THE SATELLITE IS SET ACTIVE TO SERVICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL AT HTTPS://gps.afspc.af.mil/gpsoc, DSN 560-2541,
COMM 719-567-2541, HTTPS://gps.afspc.af.mil/gpsoc
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


25 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023006
SUBJ: SVN41 (PRN22) DECOMMISSIONING JDAY 025/2200
1. NANU TYPE: DECOM
NANU NUMBER: 2023006
NANU DTG: 252330Z JAN 2023
REFERENCE NANU: 2023003
REF NANU DTG: 191733Z JAN 2023
SVN: 41
PRN: 22
UNUSABLE START JDAY: 023
UNUSABLE START TIME ZULU: 2016
UNUSABLE START CALENDAR DATE: 23 JAN 2023
DECOMMISSIONING START JDAY: 025
DECOMMISSIONING START TIME ZULU: 2200
DECOMMISSIONING START CALENDAR DATE: 25 JAN 2023

2. CONDITION: GPS SATELLITE SVN41 (PRN22) WAS UNUSABLE AS OF JDAY 023 (23 JAN 2023)
AND REMOVED FROM THE GPS CONSTELLATION ON JDAY 025 (25 JAN 2023).

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


25 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023005
SUBJ: SVN63 (PRN01) UNUSABLE JDAY 025/1600 - UNTIL FURTHER NOTICE
1. NANU TYPE: UNUSUFN
NANU NUMBER: 2023005
NANU DTG: 251629Z JAN 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 63
PRN: 01
START JDAY: 025
START TIME ZULU: 1600
START CALENDAR DATE: 25 JAN 2023
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN63 (PRN01) WAS UNUSABLE ON JDAY 025
(25 JAN 2023) BEGINNING 1600 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


20 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023004
SUBJ: SVN62 (PRN25) FORECAST OUTAGE JDAY 026/1530 - JDAY 027/0330
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023004
NANU DTG: 202227Z JAN 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 62
PRN: 25
START JDAY: 026
START TIME ZULU: 1530
START CALENDAR DATE: 26 JAN 2023
STOP JDAY: 027
STOP TIME ZULU: 0330
STOP CALENDAR DATE: 27 JAN 2023

2. CONDITION: GPS SATELLITE SVN62 (PRN25) WILL BE UNUSABLE ON JDAY 026
(26 JAN 2023) BEGINNING 1530 ZULU UNTIL JDAY 027 (27 JAN 2023)
ENDING 0330 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


19 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023003
SUBJ: SVN41 (PRN22) FORECAST OUTAGE JDAY 023/1800 - UNTIL FURTHER NOTICE
1. NANU TYPE: FCSTUUFN
NANU NUMBER: 2023003
NANU DTG: 191733Z JAN 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 41
PRN: 22
START JDAY: 023
START TIME ZULU: 1800
START CALENDAR DATE: 23 JAN 2023
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN41 (PRN22) WILL BE UNUSABLE NO EARLIER THAN JDAY 023
(23 JAN 2023) BEGINNING 1800 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


11 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023002
SUBJ: SVN41 (PRN22) FORECAST OUTAGE SUMMARY JDAY 011/0344 - JDAY 011/0928
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2023002
NANU DTG: 110931Z JAN 2023
REFERENCE NANU: 2023001
REF NANU DTG: 031905Z JAN 2023
SVN: 41
PRN: 22
START JDAY: 011
START TIME ZULU: 0344
START CALENDAR DATE: 11 JAN 2023
STOP JDAY: 011
STOP TIME ZULU: 0928
STOP CALENDAR DATE: 11 JAN 2023

2. CONDITION: GPS SATELLITE SVN41 (PRN22) WAS UNUSABLE ON JDAY 011
(11 JAN 2023) BEGINNING 0344 ZULU UNTIL JDAY 011 (11 JAN 2023)
ENDING 0928 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


03 Jan 2023   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2023001
SUBJ: SVN41 (PRN22) FORECAST OUTAGE JDAY 011/0315 - JDAY 011/1515
1. NANU TYPE: FCSTDV
NANU NUMBER: 2023001
NANU DTG: 031905Z JAN 2023
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 41
PRN: 22
START JDAY: 011
START TIME ZULU: 0315
START CALENDAR DATE: 11 JAN 2023
STOP JDAY: 011
STOP TIME ZULU: 1515
STOP CALENDAR DATE: 11 JAN 2023

2. CONDITION: GPS SATELLITE SVN41 (PRN22) WILL BE UNUSABLE ON JDAY 011
(11 JAN 2023) BEGINNING 0315 ZULU UNTIL JDAY 011 (11 JAN 2023)
ENDING 1515 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


20 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022128
SUBJ: SVN59 (PRN19) FORECAST OUTAGE SUMMARY JDAY 354/1744 - JDAY 354/2305
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022128
NANU DTG: 202310Z DEC 2022
REFERENCE NANU: 2022125
REF NANU DTG: 132239Z DEC 2022
SVN: 59
PRN: 19
START JDAY: 354
START TIME ZULU: 1744
START CALENDAR DATE: 20 DEC 2022
STOP JDAY: 354
STOP TIME ZULU: 2305
STOP CALENDAR DATE: 20 DEC 2022

2. CONDITION: GPS SATELLITE SVN59 (PRN19) WAS UNUSABLE ON JDAY 354
(20 DEC 2022) BEGINNING 1744 ZULU UNTIL JDAY 354 (20 DEC 2022)
ENDING 2305 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


15 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022127
SUBJ: SVN52 (PRN31) FORECAST OUTAGE SUMMARY JDAY 349/1023 - JDAY 350/0306
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022127
NANU DTG: 160309Z DEC 2022
REFERENCE NANU: 2022124
REF NANU DTG: 121851Z DEC 2022
SVN: 52
PRN: 31
START JDAY: 349
START TIME ZULU: 1023
START CALENDAR DATE: 15 DEC 2022
STOP JDAY: 350
STOP TIME ZULU: 0306
STOP CALENDAR DATE: 16 DEC 2022

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WAS UNUSABLE ON JDAY 349
(15 DEC 2022) BEGINNING 1023 ZULU UNTIL JDAY 350 (16 DEC 2022)
ENDING 0306 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


13 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022126
SUBJ: SVN76 (PRN23) FORECAST OUTAGE SUMMARY JDAY 347/1100 - JDAY 347/2350
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022126
NANU DTG: 132356Z DEC 2022
REFERENCE NANU: 2022121
REF NANU DTG: 072036Z DEC 2022
SVN: 76
PRN: 23
START JDAY: 347
START TIME ZULU: 1100
START CALENDAR DATE: 13 DEC 2022
STOP JDAY: 347
STOP TIME ZULU: 2350
STOP CALENDAR DATE: 13 DEC 2022

2. CONDITION: GPS SATELLITE SVN76 (PRN23) WAS UNUSABLE ON JDAY 347
(13 DEC 2022) BEGINNING 1100 ZULU UNTIL JDAY 347 (13 DEC 2022)
ENDING 2350 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


13 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022125
SUBJ: SVN59 (PRN19) FORECAST OUTAGE RESCHEDULED
1. NANU TYPE: FCSTRESCD
NANU NUMBER: 2022125
NANU DTG: 132239Z DEC 2022
REFERENCE NANU: 2022122
REF NANU DTG: 081618Z DEC 2022
SVN: 59
PRN: 19
START JDAY: 354
START TIME ZULU: 1645
START CALENDAR DATE: 20 DEC 2022
STOP JDAY: 355
STOP TIME ZULU: 0445
STOP CALENDAR DATE: 21 DEC 2022

2. CONDITION: GPS SATELLITE SVN59 (PRN19) WILL BE UNUSABLE ON JDAY 354
(20 DEC 2022) BEGINNING 1645 ZULU UNTIL JDAY 355 (21 DEC 2022)
ENDING 0445 ZULU. PLEASE REFERENCE NANU NUMBER 2022122
DTG 081618Z DEC 2022 FOR THE ORIGINAL OUTAGE TIME.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


12 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022124
SUBJ: SVN52 (PRN31) FORECAST OUTAGE JDAY 349/1000 - JDAY 350/1500
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022124
NANU DTG: 121851Z DEC 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 52
PRN: 31
START JDAY: 349
START TIME ZULU: 1000
START CALENDAR DATE: 15 DEC 2022
STOP JDAY: 350
STOP TIME ZULU: 1500
STOP CALENDAR DATE: 16 DEC 2022

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WILL BE UNUSABLE ON JDAY 349
(15 DEC 2022) BEGINNING 1000 ZULU UNTIL JDAY 350 (16 DEC 2022)
ENDING 1500 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


08 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022123
SUBJ: SVN71 (PRN26) FORECAST OUTAGE SUMMARY JDAY 342/1330 - JDAY 343/0343
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022123
NANU DTG: 090353Z DEC 2022
REFERENCE NANU: 2022119
REF NANU DTG: 051716Z DEC 2022
SVN: 71
PRN: 26
START JDAY: 342
START TIME ZULU: 1330
START CALENDAR DATE: 08 DEC 2022
STOP JDAY: 343
STOP TIME ZULU: 0343
STOP CALENDAR DATE: 09 DEC 2022

2. CONDITION: GPS SATELLITE SVN71 (PRN26) WAS UNUSABLE ON JDAY 342
(08 DEC 2022) BEGINNING 1330 ZULU UNTIL JDAY 343 (09 DEC 2022)
ENDING 0343 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


08 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022122
SUBJ: SVN59 (PRN19) FORECAST OUTAGE JDAY 349/1730 - JDAY 350/0530
1. NANU TYPE: FCSTDV
NANU NUMBER: 2022122
NANU DTG: 081618Z DEC 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 59
PRN: 19
START JDAY: 349
START TIME ZULU: 1730
START CALENDAR DATE: 15 DEC 2022
STOP JDAY: 350
STOP TIME ZULU: 0530
STOP CALENDAR DATE: 16 DEC 2022

2. CONDITION: GPS SATELLITE SVN59 (PRN19) WILL BE UNUSABLE ON JDAY 349
(15 DEC 2022) BEGINNING 1730 ZULU UNTIL JDAY 350 (16 DEC 2022)
ENDING 0530 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


07 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022121
SUBJ: SVN76 (PRN23) FORECAST OUTAGE JDAY 347/1100 - JDAY 348/1100
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022121
NANU DTG: 072036Z DEC 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 76
PRN: 23
START JDAY: 347
START TIME ZULU: 1100
START CALENDAR DATE: 13 DEC 2022
STOP JDAY: 348
STOP TIME ZULU: 1100
STOP CALENDAR DATE: 14 DEC 2022

2. CONDITION: GPS SATELLITE SVN76 (PRN23) WILL BE UNUSABLE ON JDAY 347
(13 DEC 2022) BEGINNING 1100 ZULU UNTIL JDAY 348 (14 DEC 2022)
ENDING 1100 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


06 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022120
SUBJ: SVN52 (PRN31) FORECAST OUTAGE SUMMARY JDAY 340/1033 - JDAY 341/0410
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022120
NANU DTG: 070426Z DEC 2022
REFERENCE NANU: 2022118
REF NANU DTG: 022207Z DEC 2022
SVN: 52
PRN: 31
START JDAY: 340
START TIME ZULU: 1033
START CALENDAR DATE: 06 DEC 2022
STOP JDAY: 341
STOP TIME ZULU: 0410
STOP CALENDAR DATE: 07 DEC 2022

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WAS UNUSABLE ON JDAY 340
(06 DEC 2022) BEGINNING 1033 ZULU UNTIL JDAY 341 (07 DEC 2022)
ENDING 0410 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


05 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022119
SUBJ: SVN71 (PRN26) FORECAST OUTAGE JDAY 342/1300 - JDAY 343/1300
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022119
NANU DTG: 051716Z DEC 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 71
PRN: 26
START JDAY: 342
START TIME ZULU: 1300
START CALENDAR DATE: 08 DEC 2022
STOP JDAY: 343
STOP TIME ZULU: 1300
STOP CALENDAR DATE: 09 DEC 2022

2. CONDITION: GPS SATELLITE SVN71 (PRN26) WILL BE UNUSABLE ON JDAY 342
(08 DEC 2022) BEGINNING 1300 ZULU UNTIL JDAY 343 (09 DEC 2022)
ENDING 1300 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Dec 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022118
SUBJ: SVN52 (PRN31) FORECAST OUTAGE JDAY 340/1000 - JDAY 341/1000
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022118
NANU DTG: 022207Z DEC 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 52
PRN: 31
START JDAY: 340
START TIME ZULU: 1000
START CALENDAR DATE: 06 DEC 2022
STOP JDAY: 341
STOP TIME ZULU: 1000
STOP CALENDAR DATE: 07 DEC 2022

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WILL BE UNUSABLE ON JDAY 340
(06 DEC 2022) BEGINNING 1000 ZULU UNTIL JDAY 341 (07 DEC 2022)
ENDING 1000 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS WARFIGHTER COLLABORATION CELL at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


16 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022117
SUBJ: SVN55 (PRN15) FORECAST OUTAGE SUMMARY JDAY 320/1118 - JDAY 320/2020
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022117
NANU DTG: 162029Z NOV 2022
REFERENCE NANU: 2022114
REF NANU DTG: 142000Z NOV 2022
SVN: 55
PRN: 15
START JDAY: 320
START TIME ZULU: 1118
START CALENDAR DATE: 16 NOV 2022
STOP JDAY: 320
STOP TIME ZULU: 2020
STOP CALENDAR DATE: 16 NOV 2022

2. CONDITION: GPS SATELLITE SVN55 (PRN15) WAS UNUSABLE ON JDAY 320
(16 NOV 2022) BEGINNING 1118 ZULU UNTIL JDAY 320 (16 NOV 2022)
ENDING 2020 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022116
SUBJ: SVN67 (PRN06) FORECAST OUTAGE SUMMARY JDAY 319/0424 - JDAY 319/0536
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022116
NANU DTG: 150541Z NOV 2022
REFERENCE NANU: 2022111
REF NANU DTG: 091847Z NOV 2022
SVN: 67
PRN: 06
START JDAY: 319
START TIME ZULU: 0424
START CALENDAR DATE: 15 NOV 2022
STOP JDAY: 319
STOP TIME ZULU: 0536
STOP CALENDAR DATE: 15 NOV 2022

2. CONDITION: GPS SATELLITE SVN67 (PRN06) WAS UNUSABLE ON JDAY 319
(15 NOV 2022) BEGINNING 0424 ZULU UNTIL JDAY 319 (15 NOV 2022)
ENDING 0536 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022115
SUBJ: SVN48 (PRN07) FORECAST OUTAGE SUMMARY JDAY 318/2200 - JDAY 319/0315
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022115
NANU DTG: 150319Z NOV 2022
REFERENCE NANU: 2022110
REF NANU DTG: 091839Z NOV 2022
SVN: 48
PRN: 07
START JDAY: 318
START TIME ZULU: 2200
START CALENDAR DATE: 14 NOV 2022
STOP JDAY: 319
STOP TIME ZULU: 0315
STOP CALENDAR DATE: 15 NOV 2022

2. CONDITION: GPS SATELLITE SVN48 (PRN07) WAS UNUSABLE ON JDAY 318
(14 NOV 2022) BEGINNING 2200 ZULU UNTIL JDAY 319 (15 NOV 2022)
ENDING 0315 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022114
SUBJ: SVN55 (PRN15) FORECAST OUTAGE JDAY 320/1100 - JDAY 320/2300
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022114
NANU DTG: 142000Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 55
PRN: 15
START JDAY: 320
START TIME ZULU: 1100
START CALENDAR DATE: 16 NOV 2022
STOP JDAY: 320
STOP TIME ZULU: 2300
STOP CALENDAR DATE: 16 NOV 2022

2. CONDITION: GPS SATELLITE SVN55 (PRN15) WILL BE UNUSABLE ON JDAY 320
(16 NOV 2022) BEGINNING 1100 ZULU UNTIL JDAY 320 (16 NOV 2022)
ENDING 2300 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


10 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022113
SUBJ: SVN61 (PRN02) FORECAST OUTAGE SUMMARY JDAY 314/0110 - JDAY 314/0735
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022113
NANU DTG: 100736Z NOV 2022
REFERENCE NANU: 2022095
REF NANU DTG: 021527Z NOV 2022
SVN: 61
PRN: 02
START JDAY: 314
START TIME ZULU: 0110
START CALENDAR DATE: 10 NOV 2022
STOP JDAY: 314
STOP TIME ZULU: 0735
STOP CALENDAR DATE: 10 NOV 2022

2. CONDITION: GPS SATELLITE SVN61 (PRN02) WAS UNUSABLE ON JDAY 314
(10 NOV 2022) BEGINNING 0110 ZULU UNTIL JDAY 314 (10 NOV 2022)
ENDING 0735 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


09 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022112
SUBJ: SVN52 (PRN31) FORECAST OUTAGE SUMMARY JDAY 313/1947 - JDAY 313/2056
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022112
NANU DTG: 092111Z NOV 2022
REFERENCE NANU: 2022107
REF NANU DTG: 042042Z NOV 2022
SVN: 52
PRN: 31
START JDAY: 313
START TIME ZULU: 1947
START CALENDAR DATE: 09 NOV 2022
STOP JDAY: 313
STOP TIME ZULU: 2056
STOP CALENDAR DATE: 09 NOV 2022

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WAS UNUSABLE ON JDAY 313
(09 NOV 2022) BEGINNING 1947 ZULU UNTIL JDAY 313 (09 NOV 2022)
ENDING 2056 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


09 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022111
SUBJ: SVN67 (PRN06) FORECAST OUTAGE JDAY 319/0415 - JDAY 319/1615
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022111
NANU DTG: 091847Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 67
PRN: 06
START JDAY: 319
START TIME ZULU: 0415
START CALENDAR DATE: 15 NOV 2022
STOP JDAY: 319
STOP TIME ZULU: 1615
STOP CALENDAR DATE: 15 NOV 2022

2. CONDITION: GPS SATELLITE SVN67 (PRN06) WILL BE UNUSABLE ON JDAY 319
(15 NOV 2022) BEGINNING 0415 ZULU UNTIL JDAY 319 (15 NOV 2022)
ENDING 1615 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


09 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022110
SUBJ: SVN48 (PRN07) FORECAST OUTAGE JDAY 318/2200 - JDAY 319/1000
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022110
NANU DTG: 091839Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 48
PRN: 07
START JDAY: 318
START TIME ZULU: 2200
START CALENDAR DATE: 14 NOV 2022
STOP JDAY: 319
STOP TIME ZULU: 1000
STOP CALENDAR DATE: 15 NOV 2022

2. CONDITION: GPS SATELLITE SVN48 (PRN07) WILL BE UNUSABLE ON JDAY 318
(14 NOV 2022) BEGINNING 2200 ZULU UNTIL JDAY 319 (15 NOV 2022)
ENDING 1000 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


07 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022109
SUBJ: SVN55 (PRN15) FORECAST OUTAGE SUMMARY JDAY 311/1211 - JDAY 311/1344
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022109
NANU DTG: 071351Z NOV 2022
REFERENCE NANU: 2022106
REF NANU DTG: 042037Z NOV 2022
SVN: 55
PRN: 15
START JDAY: 311
START TIME ZULU: 1211
START CALENDAR DATE: 07 NOV 2022
STOP JDAY: 311
STOP TIME ZULU: 1344
STOP CALENDAR DATE: 07 NOV 2022

2. CONDITION: GPS SATELLITE SVN55 (PRN15) WAS UNUSABLE ON JDAY 311
(07 NOV 2022) BEGINNING 1211 ZULU UNTIL JDAY 311 (07 NOV 2022)
ENDING 1344 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


07 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022108
SUBJ: SVN50 (PRN05) FORECAST OUTAGE SUMMARY JDAY 311/1008 - JDAY 311/1222
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022108
NANU DTG: 071223Z NOV 2022
REFERENCE NANU: 2022105
REF NANU DTG: 042030Z NOV 2022
SVN: 50
PRN: 05
START JDAY: 311
START TIME ZULU: 1008
START CALENDAR DATE: 07 NOV 2022
STOP JDAY: 311
STOP TIME ZULU: 1222
STOP CALENDAR DATE: 07 NOV 2022

2. CONDITION: GPS SATELLITE SVN50 (PRN05) WAS UNUSABLE ON JDAY 311
(07 NOV 2022) BEGINNING 1008 ZULU UNTIL JDAY 311 (07 NOV 2022)
ENDING 1222 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022107
SUBJ: SVN52 (PRN31) FORECAST OUTAGE RESCHEDULED
1. NANU TYPE: FCSTRESCD
NANU NUMBER: 2022107
NANU DTG: 042042Z NOV 2022
REFERENCE NANU: 2022094
REF NANU DTG: 021518Z NOV 2022
SVN: 52
PRN: 31
START JDAY: 313
START TIME ZULU: 1945
START CALENDAR DATE: 09 NOV 2022
STOP JDAY: 314
STOP TIME ZULU: 0745
STOP CALENDAR DATE: 10 NOV 2022

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WILL BE UNUSABLE ON JDAY 313
(09 NOV 2022) BEGINNING 1945 ZULU UNTIL JDAY 314 (10 NOV 2022)
ENDING 0745 ZULU. PLEASE REFERENCE NANU NUMBER 2022094
DTG 021518Z NOV 2022 FOR THE ORIGINAL OUTAGE TIME.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022106
SUBJ: SVN55 (PRN15) FORECAST OUTAGE RESCHEDULED
1. NANU TYPE: FCSTRESCD
NANU NUMBER: 2022106
NANU DTG: 042037Z NOV 2022
REFERENCE NANU: 2022093
REF NANU DTG: 021513Z NOV 2022
SVN: 55
PRN: 15
START JDAY: 311
START TIME ZULU: 1200
START CALENDAR DATE: 07 NOV 2022
STOP JDAY: 312
STOP TIME ZULU: 0000
STOP CALENDAR DATE: 08 NOV 2022

2. CONDITION: GPS SATELLITE SVN55 (PRN15) WILL BE UNUSABLE ON JDAY 311
(07 NOV 2022) BEGINNING 1200 ZULU UNTIL JDAY 312 (08 NOV 2022)
ENDING 0000 ZULU. PLEASE REFERENCE NANU NUMBER 2022093
DTG 021513Z NOV 2022 FOR THE ORIGINAL OUTAGE TIME.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022105
SUBJ: SVN50 (PRN05) FORECAST OUTAGE RESCHEDULED
1. NANU TYPE: FCSTRESCD
NANU NUMBER: 2022105
NANU DTG: 042030Z NOV 2022
REFERENCE NANU: 2022092
REF NANU DTG: 021508Z NOV 2022
SVN: 50
PRN: 05
START JDAY: 311
START TIME ZULU: 1000
START CALENDAR DATE: 07 NOV 2022
STOP JDAY: 311
STOP TIME ZULU: 2200
STOP CALENDAR DATE: 07 NOV 2022

2. CONDITION: GPS SATELLITE SVN50 (PRN05) WILL BE UNUSABLE ON JDAY 311
(07 NOV 2022) BEGINNING 1000 ZULU UNTIL JDAY 311 (07 NOV 2022)
ENDING 2200 ZULU. PLEASE REFERENCE NANU NUMBER 2022092
DTG 021508Z NOV 2022 FOR THE ORIGINAL OUTAGE TIME.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022104 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
Please disregard NANU 2022101. Please reference NANU 2022103 instead.
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022103
SUBJ: SVN57 (PRN29) UNUSABLE JDAY 308/0843 - JDAY 308/1032
1. NANU TYPE: UNUNOREF
NANU NUMBER: 2022103
NANU DTG: 041435Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 57
PRN: 29
START JDAY: 308
START TIME ZULU: 0843
START CALENDAR DATE: 04 NOV 2022
STOP JDAY: 308
STOP TIME ZULU: 1032
STOP CALENDAR DATE: 04 NOV 2022

2. CONDITION: GPS SATELLITE SVN57 (PRN29) WAS UNUSABLE ON JDAY 308
(04 NOV 2022) BEGINNING 0843 ZULU UNTIL JDAY 308 (04 NOV 2022)
ENDING 1032 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022102
SUBJ: SVN57 (PRN29) FORECAST OUTAGE CANCELED
1. NANU TYPE: FCSTCANC
NANU NUMBER: 2022102
NANU DTG: 041426Z NOV 2022
REFERENCE NANU: 2022100
REF NANU DTG: 040958Z NOV 2022
SVN: 57
PRN: 29
START JDAY: 308
START TIME ZULU: 0843
START CALENDAR DATE: 04 NOV 2022
STOP JDAY: CANCELLED
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: THE FORECAST OUTAGE FOR GPS SATELLITE SVN57 (PRN29) SCHEDULED FOR
JDAY 308 (04 NOV 2022) BEGINNING 0843 ZULU HAS BEEN CANCELED.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022101
SUBJ: SVN57 (PRN29) UNUSABLE JDAY 308/0843 - JDAY 308/1032
1. NANU TYPE: UNUSABLE
NANU NUMBER: 2022101
NANU DTG: 041035Z NOV 2022
REFERENCE NANU: 2022100
REF NANU DTG: 040958Z NOV 2022
SVN: 57
PRN: 29
START JDAY: 308
START TIME ZULU: 0843
START CALENDAR DATE: 04 NOV 2022
STOP JDAY: 308
STOP TIME ZULU: 1032
STOP CALENDAR DATE: 04 NOV 2022

2. CONDITION: GPS SATELLITE SVN57 (PRN29) WAS UNUSABLE ON JDAY 308
(04 NOV 2022) BEGINNING 0843 ZULU UNTIL JDAY 308 (04 NOV 2022)
ENDING 1032 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022100
SUBJ: SVN57 (PRN29) FORECAST OUTAGE JDAY 308/0843 - UNTIL FURTHER NOTICE
1. NANU TYPE: FCSTUUFN
NANU NUMBER: 2022100
NANU DTG: 040958Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 57
PRN: 29
START JDAY: 308
START TIME ZULU: 0843
START CALENDAR DATE: 04 NOV 2022
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: GPS SATELLITE SVN57 (PRN29) WILL BE UNUSABLE NO EARLIER THAN JDAY 308
(04 NOV 2022) BEGINNING 0843 ZULU UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022099
SUBJ: SVN57 (PRN29) FORECAST OUTAGE CANCELED
1. NANU TYPE: FCSTCANC
NANU NUMBER: 2022099
NANU DTG: 040933Z NOV 2022
REFERENCE NANU: 2022091
REF NANU DTG: 281852Z OCT 2022
SVN: 57
PRN: 29
START JDAY: 308
START TIME ZULU: 0845
START CALENDAR DATE: 04 NOV 2022
STOP JDAY: CANCELLED
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: THE FORECAST OUTAGE FOR GPS SATELLITE SVN57 (PRN29) SCHEDULED FOR
JDAY 308 (04 NOV 2022) BEGINNING 0845 ZULU HAS BEEN CANCELED.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


04 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022098
SUBJ: SVN53 (PRN17) FORECAST OUTAGE SUMMARY JDAY 308/0417 - JDAY 308/0649
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022098
NANU DTG: 040649Z NOV 2022
REFERENCE NANU: 2022090
REF NANU DTG: 281848Z OCT 2022
SVN: 53
PRN: 17
START JDAY: 308
START TIME ZULU: 0417
START CALENDAR DATE: 04 NOV 2022
STOP JDAY: 308
STOP TIME ZULU: 0649
STOP CALENDAR DATE: 04 NOV 2022

2. CONDITION: GPS SATELLITE SVN53 (PRN17) WAS UNUSABLE ON JDAY 308
(04 NOV 2022) BEGINNING 0417 ZULU UNTIL JDAY 308 (04 NOV 2022)
ENDING 0649 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


03 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022097
SUBJ: SVN58 (PRN12) FORECAST OUTAGE SUMMARY JDAY 307/0555 - JDAY 307/0832
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022097
NANU DTG: 030856Z NOV 2022
REFERENCE NANU: 2022089
REF NANU DTG: 281844Z OCT 2022
SVN: 58
PRN: 12
START JDAY: 307
START TIME ZULU: 0555
START CALENDAR DATE: 03 NOV 2022
STOP JDAY: 307
STOP TIME ZULU: 0832
STOP CALENDAR DATE: 03 NOV 2022

2. CONDITION: GPS SATELLITE SVN58 (PRN12) WAS UNUSABLE ON JDAY 307
(03 NOV 2022) BEGINNING 0555 ZULU UNTIL JDAY 307 (03 NOV 2022)
ENDING 0832 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022096
SUBJ: SVN64 (PRN30) FORECAST OUTAGE SUMMARY JDAY 307/0019 - JDAY 307/0155
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022096
NANU DTG: 030158Z NOV 2022
REFERENCE NANU: 2022088
REF NANU DTG: 281837Z OCT 2022
SVN: 64
PRN: 30
START JDAY: 307
START TIME ZULU: 0019
START CALENDAR DATE: 03 NOV 2022
STOP JDAY: 307
STOP TIME ZULU: 0155
STOP CALENDAR DATE: 03 NOV 2022

2. CONDITION: GPS SATELLITE SVN64 (PRN30) WAS UNUSABLE ON JDAY 307
(03 NOV 2022) BEGINNING 0019 ZULU UNTIL JDAY 307 (03 NOV 2022)
ENDING 0155 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022095
SUBJ: SVN61 (PRN02) FORECAST OUTAGE JDAY 314/0100 - JDAY 315/0100
1. NANU TYPE: FCSTDV
NANU NUMBER: 2022095
NANU DTG: 021527Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 61
PRN: 02
START JDAY: 314
START TIME ZULU: 0100
START CALENDAR DATE: 10 NOV 2022
STOP JDAY: 315
STOP TIME ZULU: 0100
STOP CALENDAR DATE: 11 NOV 2022

2. CONDITION: GPS SATELLITE SVN61 (PRN02) WILL BE UNUSABLE ON JDAY 314
(10 NOV 2022) BEGINNING 0100 ZULU UNTIL JDAY 315 (11 NOV 2022)
ENDING 0100 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022094
SUBJ: SVN52 (PRN31) FORECAST OUTAGE JDAY 313/1945 - JDAY 313/2145
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022094
NANU DTG: 021518Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 52
PRN: 31
START JDAY: 313
START TIME ZULU: 1945
START CALENDAR DATE: 09 NOV 2022
STOP JDAY: 313
STOP TIME ZULU: 2145
STOP CALENDAR DATE: 09 NOV 2022

2. CONDITION: GPS SATELLITE SVN52 (PRN31) WILL BE UNUSABLE ON JDAY 313
(09 NOV 2022) BEGINNING 1945 ZULU UNTIL JDAY 313 (09 NOV 2022)
ENDING 2145 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022093
SUBJ: SVN55 (PRN15) FORECAST OUTAGE JDAY 311/1315 - JDAY 311/1500
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022093
NANU DTG: 021513Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 55
PRN: 15
START JDAY: 311
START TIME ZULU: 1315
START CALENDAR DATE: 07 NOV 2022
STOP JDAY: 311
STOP TIME ZULU: 1500
STOP CALENDAR DATE: 07 NOV 2022

2. CONDITION: GPS SATELLITE SVN55 (PRN15) WILL BE UNUSABLE ON JDAY 311
(07 NOV 2022) BEGINNING 1315 ZULU UNTIL JDAY 311 (07 NOV 2022)
ENDING 1500 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


02 Nov 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022092
SUBJ: SVN50 (PRN05) FORECAST OUTAGE JDAY 311/1130 - JDAY 311/1315
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022092
NANU DTG: 021508Z NOV 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 50
PRN: 05
START JDAY: 311
START TIME ZULU: 1130
START CALENDAR DATE: 07 NOV 2022
STOP JDAY: 311
STOP TIME ZULU: 1315
STOP CALENDAR DATE: 07 NOV 2022

2. CONDITION: GPS SATELLITE SVN50 (PRN05) WILL BE UNUSABLE ON JDAY 311
(07 NOV 2022) BEGINNING 1130 ZULU UNTIL JDAY 311 (07 NOV 2022)
ENDING 1315 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


28 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022091
SUBJ: SVN57 (PRN29) FORECAST OUTAGE JDAY 308/0845 - JDAY 308/2045
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022091
NANU DTG: 281852Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 57
PRN: 29
START JDAY: 308
START TIME ZULU: 0845
START CALENDAR DATE: 04 NOV 2022
STOP JDAY: 308
STOP TIME ZULU: 2045
STOP CALENDAR DATE: 04 NOV 2022

2. CONDITION: GPS SATELLITE SVN57 (PRN29) WILL BE UNUSABLE ON JDAY 308
(04 NOV 2022) BEGINNING 0845 ZULU UNTIL JDAY 308 (04 NOV 2022)
ENDING 2045 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


28 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022090
SUBJ: SVN53 (PRN17) FORECAST OUTAGE JDAY 308/0000 - JDAY 308/1200
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022090
NANU DTG: 281848Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 53
PRN: 17
START JDAY: 308
START TIME ZULU: 0000
START CALENDAR DATE: 04 NOV 2022
STOP JDAY: 308
STOP TIME ZULU: 1200
STOP CALENDAR DATE: 04 NOV 2022

2. CONDITION: GPS SATELLITE SVN53 (PRN17) WILL BE UNUSABLE ON JDAY 308
(04 NOV 2022) BEGINNING 0000 ZULU UNTIL JDAY 308 (04 NOV 2022)
ENDING 1200 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


28 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022089
SUBJ: SVN58 (PRN12) FORECAST OUTAGE JDAY 307/0555 - JDAY 307/1755
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022089
NANU DTG: 281844Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 58
PRN: 12
START JDAY: 307
START TIME ZULU: 0555
START CALENDAR DATE: 03 NOV 2022
STOP JDAY: 307
STOP TIME ZULU: 1755
STOP CALENDAR DATE: 03 NOV 2022

2. CONDITION: GPS SATELLITE SVN58 (PRN12) WILL BE UNUSABLE ON JDAY 307
(03 NOV 2022) BEGINNING 0555 ZULU UNTIL JDAY 307 (03 NOV 2022)
ENDING 1755 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


28 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022088
SUBJ: SVN64 (PRN30) FORECAST OUTAGE JDAY 306/2355 - JDAY 307/1155
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022088
NANU DTG: 281837Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 64
PRN: 30
START JDAY: 306
START TIME ZULU: 2355
START CALENDAR DATE: 02 NOV 2022
STOP JDAY: 307
STOP TIME ZULU: 1155
STOP CALENDAR DATE: 03 NOV 2022

2. CONDITION: GPS SATELLITE SVN64 (PRN30) WILL BE UNUSABLE ON JDAY 306
(02 NOV 2022) BEGINNING 2355 ZULU UNTIL JDAY 307 (03 NOV 2022)
ENDING 1155 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


21 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022087
SUBJ: SVN63 (PRN01) FORECAST OUTAGE SUMMARY JDAY 294/1803 - JDAY 294/1954
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022087
NANU DTG: 211956Z OCT 2022
REFERENCE NANU: 2022078
REF NANU DTG: 141911Z OCT 2022
SVN: 63
PRN: 01
START JDAY: 294
START TIME ZULU: 1803
START CALENDAR DATE: 21 OCT 2022
STOP JDAY: 294
STOP TIME ZULU: 1954
STOP CALENDAR DATE: 21 OCT 2022

2. CONDITION: GPS SATELLITE SVN63 (PRN01) WAS UNUSABLE ON JDAY 294
(21 OCT 2022) BEGINNING 1803 ZULU UNTIL JDAY 294 (21 OCT 2022)
ENDING 1954 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


21 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022086 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
On approximately 27 OCT 2022, SVN49 will resume transmitting L-band utilizing PRN28; at L-band activation, SVN49/PRN28 will be unusable until further notice (additionally, no broadcast almanacs will include SVN49/PRN28 until further notice).
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


21 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022085
SUBJ: SVN73 (PRN10) FORECAST OUTAGE SUMMARY JDAY 294/1418 - JDAY 294/1555
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022085
NANU DTG: 211556Z OCT 2022
REFERENCE NANU: 2022077
REF NANU DTG: 141908Z OCT 2022
SVN: 73
PRN: 10
START JDAY: 294
START TIME ZULU: 1418
START CALENDAR DATE: 21 OCT 2022
STOP JDAY: 294
STOP TIME ZULU: 1555
STOP CALENDAR DATE: 21 OCT 2022

2. CONDITION: GPS SATELLITE SVN73 (PRN10) WAS UNUSABLE ON JDAY 294
(21 OCT 2022) BEGINNING 1418 ZULU UNTIL JDAY 294 (21 OCT 2022)
ENDING 1555 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


20 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022084
SUBJ: SVN72 (PRN08) FORECAST OUTAGE SUMMARY JDAY 294/0017 - JDAY 294/0122
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022084
NANU DTG: 210129Z OCT 2022
REFERENCE NANU: 2022076
REF NANU DTG: 141904Z OCT 2022
SVN: 72
PRN: 08
START JDAY: 294
START TIME ZULU: 0017
START CALENDAR DATE: 21 OCT 2022
STOP JDAY: 294
STOP TIME ZULU: 0122
STOP CALENDAR DATE: 21 OCT 2022

2. CONDITION: GPS SATELLITE SVN72 (PRN08) WAS UNUSABLE ON JDAY 294
(21 OCT 2022) BEGINNING 0017 ZULU UNTIL JDAY 294 (21 OCT 2022)
ENDING 0122 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


20 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022083
SUBJ: SVN71 (PRN26) FORECAST OUTAGE SUMMARY JDAY 293/2144 - JDAY 293/2337
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022083
NANU DTG: 202338Z OCT 2022
REFERENCE NANU: 2022075
REF NANU DTG: 141857Z OCT 2022
SVN: 71
PRN: 26
START JDAY: 293
START TIME ZULU: 2144
START CALENDAR DATE: 20 OCT 2022
STOP JDAY: 293
STOP TIME ZULU: 2337
STOP CALENDAR DATE: 20 OCT 2022

2. CONDITION: GPS SATELLITE SVN71 (PRN26) WAS UNUSABLE ON JDAY 293
(20 OCT 2022) BEGINNING 2144 ZULU UNTIL JDAY 293 (20 OCT 2022)
ENDING 2337 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


19 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022082
SUBJ: SVN66 (PRN27) FORECAST OUTAGE SUMMARY JDAY 292/2352 - JDAY 293/0054
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022082
NANU DTG: 200101Z OCT 2022
REFERENCE NANU: 2022074
REF NANU DTG: 141657Z OCT 2022
SVN: 66
PRN: 27
START JDAY: 292
START TIME ZULU: 2352
START CALENDAR DATE: 19 OCT 2022
STOP JDAY: 293
STOP TIME ZULU: 0054
STOP CALENDAR DATE: 20 OCT 2022

2. CONDITION: GPS SATELLITE SVN66 (PRN27) WAS UNUSABLE ON JDAY 292
(19 OCT 2022) BEGINNING 2352 ZULU UNTIL JDAY 293 (20 OCT 2022)
ENDING 0054 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


19 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022081
SUBJ: SVN69 (PRN03) FORECAST OUTAGE SUMMARY JDAY 292/1923 - JDAY 292/2055
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022081
NANU DTG: 192106Z OCT 2022
REFERENCE NANU: 2022073
REF NANU DTG: 141640Z OCT 2022
SVN: 69
PRN: 03
START JDAY: 292
START TIME ZULU: 1923
START CALENDAR DATE: 19 OCT 2022
STOP JDAY: 292
STOP TIME ZULU: 2055
STOP CALENDAR DATE: 19 OCT 2022

2. CONDITION: GPS SATELLITE SVN69 (PRN03) WAS UNUSABLE ON JDAY 292
(19 OCT 2022) BEGINNING 1923 ZULU UNTIL JDAY 292 (19 OCT 2022)
ENDING 2055 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


18 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022080
SUBJ: SVN68 (PRN09) FORECAST OUTAGE SUMMARY JDAY 291/2220 - JDAY 292/0006
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022080
NANU DTG: 190014Z OCT 2022
REFERENCE NANU: 2022072
REF NANU DTG: 141634Z OCT 2022
SVN: 68
PRN: 09
START JDAY: 291
START TIME ZULU: 2220
START CALENDAR DATE: 18 OCT 2022
STOP JDAY: 292
STOP TIME ZULU: 0006
STOP CALENDAR DATE: 19 OCT 2022

2. CONDITION: GPS SATELLITE SVN68 (PRN09) WAS UNUSABLE ON JDAY 291
(18 OCT 2022) BEGINNING 2220 ZULU UNTIL JDAY 292 (19 OCT 2022)
ENDING 0006 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


18 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022079
SUBJ: SVN65 (PRN24) FORECAST OUTAGE SUMMARY JDAY 291/1452 - JDAY 291/1707
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022079
NANU DTG: 181709Z OCT 2022
REFERENCE NANU: 2022071
REF NANU DTG: 141627Z OCT 2022
SVN: 65
PRN: 24
START JDAY: 291
START TIME ZULU: 1452
START CALENDAR DATE: 18 OCT 2022
STOP JDAY: 291
STOP TIME ZULU: 1707
STOP CALENDAR DATE: 18 OCT 2022

2. CONDITION: GPS SATELLITE SVN65 (PRN24) WAS UNUSABLE ON JDAY 291
(18 OCT 2022) BEGINNING 1452 ZULU UNTIL JDAY 291 (18 OCT 2022)
ENDING 1707 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022078
SUBJ: SVN63 (PRN01) FORECAST OUTAGE JDAY 294/1730 - JDAY 294/2130
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022078
NANU DTG: 141911Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 63
PRN: 01
START JDAY: 294
START TIME ZULU: 1730
START CALENDAR DATE: 21 OCT 2022
STOP JDAY: 294
STOP TIME ZULU: 2130
STOP CALENDAR DATE: 21 OCT 2022

2. CONDITION: GPS SATELLITE SVN63 (PRN01) WILL BE UNUSABLE ON JDAY 294
(21 OCT 2022) BEGINNING 1730 ZULU UNTIL JDAY 294 (21 OCT 2022)
ENDING 2130 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022077
SUBJ: SVN73 (PRN10) FORECAST OUTAGE JDAY 294/1350 - JDAY 294/1700
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022077
NANU DTG: 141908Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 73
PRN: 10
START JDAY: 294
START TIME ZULU: 1350
START CALENDAR DATE: 21 OCT 2022
STOP JDAY: 294
STOP TIME ZULU: 1700
STOP CALENDAR DATE: 21 OCT 2022

2. CONDITION: GPS SATELLITE SVN73 (PRN10) WILL BE UNUSABLE ON JDAY 294
(21 OCT 2022) BEGINNING 1350 ZULU UNTIL JDAY 294 (21 OCT 2022)
ENDING 1700 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022076
SUBJ: SVN72 (PRN08) FORECAST OUTAGE JDAY 294/0000 - JDAY 294/0400
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022076
NANU DTG: 141904Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 72
PRN: 08
START JDAY: 294
START TIME ZULU: 0000
START CALENDAR DATE: 21 OCT 2022
STOP JDAY: 294
STOP TIME ZULU: 0400
STOP CALENDAR DATE: 21 OCT 2022

2. CONDITION: GPS SATELLITE SVN72 (PRN08) WILL BE UNUSABLE ON JDAY 294
(21 OCT 2022) BEGINNING 0000 ZULU UNTIL JDAY 294 (21 OCT 2022)
ENDING 0400 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022075
SUBJ: SVN71 (PRN26) FORECAST OUTAGE JDAY 293/2000 - JDAY 294/0000
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022075
NANU DTG: 141857Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 71
PRN: 26
START JDAY: 293
START TIME ZULU: 2000
START CALENDAR DATE: 20 OCT 2022
STOP JDAY: 294
STOP TIME ZULU: 0000
STOP CALENDAR DATE: 21 OCT 2022

2. CONDITION: GPS SATELLITE SVN71 (PRN26) WILL BE UNUSABLE ON JDAY 293
(20 OCT 2022) BEGINNING 2000 ZULU UNTIL JDAY 294 (21 OCT 2022)
ENDING 0000 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022074
SUBJ: SVN66 (PRN27) FORECAST OUTAGE JDAY 292/2230 - JDAY 293/0300
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022074
NANU DTG: 141657Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 66
PRN: 27
START JDAY: 292
START TIME ZULU: 2230
START CALENDAR DATE: 19 OCT 2022
STOP JDAY: 293
STOP TIME ZULU: 0300
STOP CALENDAR DATE: 20 OCT 2022

2. CONDITION: GPS SATELLITE SVN66 (PRN27) WILL BE UNUSABLE ON JDAY 292
(19 OCT 2022) BEGINNING 2230 ZULU UNTIL JDAY 293 (20 OCT 2022)
ENDING 0300 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022073
SUBJ: SVN69 (PRN03) FORECAST OUTAGE JDAY 292/1900 - JDAY 292/2300
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022073
NANU DTG: 141640Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 69
PRN: 03
START JDAY: 292
START TIME ZULU: 1900
START CALENDAR DATE: 19 OCT 2022
STOP JDAY: 292
STOP TIME ZULU: 2300
STOP CALENDAR DATE: 19 OCT 2022

2. CONDITION: GPS SATELLITE SVN69 (PRN03) WILL BE UNUSABLE ON JDAY 292
(19 OCT 2022) BEGINNING 1900 ZULU UNTIL JDAY 292 (19 OCT 2022)
ENDING 2300 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022072
SUBJ: SVN68 (PRN09) FORECAST OUTAGE JDAY 291/2200 - JDAY 292/0100
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022072
NANU DTG: 141634Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 68
PRN: 09
START JDAY: 291
START TIME ZULU: 2200
START CALENDAR DATE: 18 OCT 2022
STOP JDAY: 292
STOP TIME ZULU: 0100
STOP CALENDAR DATE: 19 OCT 2022

2. CONDITION: GPS SATELLITE SVN68 (PRN09) WILL BE UNUSABLE ON JDAY 291
(18 OCT 2022) BEGINNING 2200 ZULU UNTIL JDAY 292 (19 OCT 2022)
ENDING 0100 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


14 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022071
SUBJ: SVN65 (PRN24) FORECAST OUTAGE JDAY 291/1430 - JDAY 291/2000
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022071
NANU DTG: 141627Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 65
PRN: 24
START JDAY: 291
START TIME ZULU: 1430
START CALENDAR DATE: 18 OCT 2022
STOP JDAY: 291
STOP TIME ZULU: 2000
STOP CALENDAR DATE: 18 OCT 2022

2. CONDITION: GPS SATELLITE SVN65 (PRN24) WILL BE UNUSABLE ON JDAY 291
(18 OCT 2022) BEGINNING 1430 ZULU UNTIL JDAY 291 (18 OCT 2022)
ENDING 2000 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


13 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022070
SUBJ: SVN70 (PRN32) FORECAST OUTAGE CANCELED
1. NANU TYPE: FCSTCANC
NANU NUMBER: 2022070
NANU DTG: 132110Z OCT 2022
REFERENCE NANU: 2022065
REF NANU DTG: 092128Z OCT 2022
SVN: 70
PRN: 32
START JDAY: 287
START TIME ZULU: 1430
START CALENDAR DATE: 14 OCT 2022
STOP JDAY: CANCELLED
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: THE FORECAST OUTAGE FOR GPS SATELLITE SVN70 (PRN32) SCHEDULED FOR
JDAY 287 (14 OCT 2022) BEGINNING 1430 ZULU HAS BEEN CANCELED.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


13 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022069
SUBJ: SVN70 (PRN32) FORECAST OUTAGE SUMMARY JDAY 286/1523 - JDAY 286/2057
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022069
NANU DTG: 132105Z OCT 2022
REFERENCE NANU: 2022068
REF NANU DTG: 132006Z OCT 2022
SVN: 70
PRN: 32
START JDAY: 286
START TIME ZULU: 1523
START CALENDAR DATE: 13 OCT 2022
STOP JDAY: 286
STOP TIME ZULU: 2057
STOP CALENDAR DATE: 13 OCT 2022

2. CONDITION: GPS SATELLITE SVN70 (PRN32) WAS UNUSABLE ON JDAY 286
(13 OCT 2022) BEGINNING 1523 ZULU UNTIL JDAY 286 (13 OCT 2022)
ENDING 2057 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


13 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022068
SUBJ: SVN70 (PRN32) FORECAST OUTAGE EXTENDED UNTIL FURTHER NOTICE
1. NANU TYPE: FCSTEXTD
NANU NUMBER: 2022068
NANU DTG: 132006Z OCT 2022
REFERENCE NANU: 2022064
REF NANU DTG: 092112Z OCT 2022
SVN: 70
PRN: 32
START JDAY: 286
START TIME ZULU: 1430
START CALENDAR DATE: 13 OCT 2022
STOP JDAY: UFN
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A

2. CONDITION: THE FORECAST OUTAGE FOR GPS SATELLITE SVN70 (PRN32) IS EXTENDED
UNTIL FURTHER NOTICE.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


12 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022067
SUBJ: SVN62 (PRN25) FORECAST OUTAGE SUMMARY JDAY 285/0802 - JDAY 285/1238
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022067
NANU DTG: 121252Z OCT 2022
REFERENCE NANU: 2022063
REF NANU DTG: 092012Z OCT 2022
SVN: 62
PRN: 25
START JDAY: 285
START TIME ZULU: 0802
START CALENDAR DATE: 12 OCT 2022
STOP JDAY: 285
STOP TIME ZULU: 1238
STOP CALENDAR DATE: 12 OCT 2022

2. CONDITION: GPS SATELLITE SVN62 (PRN25) WAS UNUSABLE ON JDAY 285
(12 OCT 2022) BEGINNING 0802 ZULU UNTIL JDAY 285 (12 OCT 2022)
ENDING 1238 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


11 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022066
SUBJ: SVN62 (PRN25) FORECAST OUTAGE SUMMARY JDAY 284/0809 - JDAY 284/1309
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022066
NANU DTG: 111335Z OCT 2022
REFERENCE NANU: 2022062
REF NANU DTG: 091953Z OCT 2022
SVN: 62
PRN: 25
START JDAY: 284
START TIME ZULU: 0809
START CALENDAR DATE: 11 OCT 2022
STOP JDAY: 284
STOP TIME ZULU: 1309
STOP CALENDAR DATE: 11 OCT 2022

2. CONDITION: GPS SATELLITE SVN62 (PRN25) WAS UNUSABLE ON JDAY 284
(11 OCT 2022) BEGINNING 0809 ZULU UNTIL JDAY 284 (11 OCT 2022)
ENDING 1309 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


10 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022065
SUBJ: SVN70 (PRN32) FORECAST OUTAGE JDAY 287/1430 - JDAY 287/2030
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022065
NANU DTG: 092128Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 70
PRN: 32
START JDAY: 287
START TIME ZULU: 1430
START CALENDAR DATE: 14 OCT 2022
STOP JDAY: 287
STOP TIME ZULU: 2030
STOP CALENDAR DATE: 14 OCT 2022

2. CONDITION: GPS SATELLITE SVN70 (PRN32) WILL BE UNUSABLE ON JDAY 287
(14 OCT 2022) BEGINNING 1430 ZULU UNTIL JDAY 287 (14 OCT 2022)
ENDING 2030 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


09 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022064
SUBJ: SVN70 (PRN32) FORECAST OUTAGE JDAY 286/1430 - JDAY 286/2030
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022064
NANU DTG: 092112Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 70
PRN: 32
START JDAY: 286
START TIME ZULU: 1430
START CALENDAR DATE: 13 OCT 2022
STOP JDAY: 286
STOP TIME ZULU: 2030
STOP CALENDAR DATE: 13 OCT 2022

2. CONDITION: GPS SATELLITE SVN70 (PRN32) WILL BE UNUSABLE ON JDAY 286
(13 OCT 2022) BEGINNING 1430 ZULU UNTIL JDAY 286 (13 OCT 2022)
ENDING 2030 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


09 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022063
SUBJ: SVN62 (PRN25) FORECAST OUTAGE JDAY 285/0730 - JDAY 285/1400
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022063
NANU DTG: 092012Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 62
PRN: 25
START JDAY: 285
START TIME ZULU: 0730
START CALENDAR DATE: 12 OCT 2022
STOP JDAY: 285
STOP TIME ZULU: 1400
STOP CALENDAR DATE: 12 OCT 2022

2. CONDITION: GPS SATELLITE SVN62 (PRN25) WILL BE UNUSABLE ON JDAY 285
(12 OCT 2022) BEGINNING 0730 ZULU UNTIL JDAY 285 (12 OCT 2022)
ENDING 1400 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


09 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022062
SUBJ: SVN62 (PRN25) FORECAST OUTAGE JDAY 284/0730 - JDAY 284/1400
1. NANU TYPE: FCSTMX
NANU NUMBER: 2022062
NANU DTG: 091953Z OCT 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 62
PRN: 25
START JDAY: 284
START TIME ZULU: 0730
START CALENDAR DATE: 11 OCT 2022
STOP JDAY: 284
STOP TIME ZULU: 1400
STOP CALENDAR DATE: 11 OCT 2022

2. CONDITION: GPS SATELLITE SVN62 (PRN25) WILL BE UNUSABLE ON JDAY 284
(11 OCT 2022) BEGINNING 0730 ZULU UNTIL JDAY 284 (11 OCT 2022)
ENDING 1400 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


06 Oct 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022061
SUBJ: SVN69 (PRN03) FORECAST OUTAGE SUMMARY JDAY 279/1428 - JDAY 279/2019
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022061
NANU DTG: 062032Z OCT 2022
REFERENCE NANU: 2022060
REF NANU DTG: 301616Z SEP 2022
SVN: 69
PRN: 03
START JDAY: 279
START TIME ZULU: 1428
START CALENDAR DATE: 06 OCT 2022
STOP JDAY: 279
STOP TIME ZULU: 2019
STOP CALENDAR DATE: 06 OCT 2022

2. CONDITION: GPS SATELLITE SVN69 (PRN03) WAS UNUSABLE ON JDAY 279
(06 OCT 2022) BEGINNING 1428 ZULU UNTIL JDAY 279 (06 OCT 2022)
ENDING 2019 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


30 Sep 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022060
SUBJ: SVN69 (PRN03) FORECAST OUTAGE JDAY 279/1425 - JDAY 280/0225
1. NANU TYPE: FCSTDV
NANU NUMBER: 2022060
NANU DTG: 301616Z SEP 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 69
PRN: 03
START JDAY: 279
START TIME ZULU: 1425
START CALENDAR DATE: 06 OCT 2022
STOP JDAY: 280
STOP TIME ZULU: 0225
STOP CALENDAR DATE: 07 OCT 2022

2. CONDITION: GPS SATELLITE SVN69 (PRN03) WILL BE UNUSABLE ON JDAY 279
(06 OCT 2022) BEGINNING 1425 ZULU UNTIL JDAY 280 (07 OCT 2022)
ENDING 0225 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


29 Sep 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022059
SUBJ: SVN50 (PRN05) FORECAST OUTAGE SUMMARY JDAY 272/2300 - JDAY 273/0420
1. NANU TYPE: FCSTSUMM
NANU NUMBER: 2022059
NANU DTG: 300424Z SEP 2022
REFERENCE NANU: 2022058
REF NANU DTG: 232227Z SEP 2022
SVN: 50
PRN: 05
START JDAY: 272
START TIME ZULU: 2300
START CALENDAR DATE: 29 SEP 2022
STOP JDAY: 273
STOP TIME ZULU: 0420
STOP CALENDAR DATE: 30 SEP 2022

2. CONDITION: GPS SATELLITE SVN50 (PRN05) WAS UNUSABLE ON JDAY 272
(29 SEP 2022) BEGINNING 2300 ZULU UNTIL JDAY 273 (30 SEP 2022)
ENDING 0420 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL


23 Sep 2022   
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2022058
SUBJ: SVN50 (PRN05) FORECAST OUTAGE JDAY 272/2230 - JDAY 273/1030
1. NANU TYPE: FCSTDV
NANU NUMBER: 2022058
NANU DTG: 232227Z SEP 2022
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 50
PRN: 05
START JDAY: 272
START TIME ZULU: 2230
START CALENDAR DATE: 29 SEP 2022
STOP JDAY: 273
STOP TIME ZULU: 1030
STOP CALENDAR DATE: 30 SEP 2022

2. CONDITION: GPS SATELLITE SVN50 (PRN05) WILL BE UNUSABLE ON JDAY 272
(29 SEP 2022) BEGINNING 2230 ZULU UNTIL JDAY 273 (30 SEP 2022)
ENDING 1030 ZULU.

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526.
JSPOCCOMBATOPS@US.AF.MIL