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GPS Constellation Active Nanu Status
GPS CONSTELLATION STATUS FOR 12/18/2014

Plane Slot SVN PRN Block-Type Clock Outage Date Nanu-Type Nanu-Subject
A 1 65 24 IIF CS
A 2 52 31 IIR-M RB
A 3 38 8 IIA CS 30 OCT 2014 FCSTUUFN 2014078 - SVN38 (PRN08) FORECAST OUTAGE JDAY 303/1500 - UNTIL FURTHER NOTICE
A 4 48 7 IIR-M RB 19 DEC 2014 FCSTDV 2014088 - SVN48 (PRN07) FORECAST OUTAGE JDAY 353/0100 - JDAY 353/1300
A 6 64 30 IIF RB LAUNCH 2014018 - SVN64 (PRN30) LAUNCH JDAY 052
30 MAY 2014 USABINIT 2014047 - SVN64 (PRN30) USABLE JDAY 150/1835
B 1 56 16 IIR RB 04 FEB 2014 FCSTCANC 2014007 - SVN56 (PRN16) FORECAST OUTAGE CANCELED
B 2 62 25 IIF RB
B 3 44 28 IIR RB
B 4 58 12 IIR-M RB
C 1 57 29 IIR-M RB
C 2 66 27 IIF RB
C 3 59 19 IIR RB
C 4 53 17 IIR-M RB
D 1 61 2 IIR RB
D 2 63 1 IIF RB
D 3 45 21 IIR RB
D 4 34 4 IIA RB
D 5 46 11 IIR RB
D 6 67 6 IIF RB 10 JUN 2014 USABINIT 2014049 - SVN67 (PRN06) USABLE JDAY 161/1710
21 FEB 2014 FCSTUUFN 2014015 - SVN36 (PRN06) FORECAST OUTAGE JDAY 052/1430 - UNTIL FURTHER NOTICE
LAUNCH 2014045 - SVN67 (PRN06) LAUNCH JDAY 137
E 1 69 3 IIF RB LAUNCH 2014082 - SVN69 (PRN03) LAUNCH JDAY 302
12 DEC 2014 USABINIT 2014090 - SVN69 (PRN03) USABLE JDAY 346/2119
01 AUG 2014 FCSTUUFN 2014060 - SVN33 (PRN03) FORECAST OUTAGE JDAY 213/1430 - UNTIL FURTHER NOTICE
E 1 51 20 IIR RB
E 2 47 22 IIR RB
E 3 50 5 IIR-M RB
E 4 54 18 IIR RB
E 5 23 32 IIA RB
E 6 40 10 IIA CS
F 1 41 14 IIR RB
F 2 55 15 IIR-M RB
F 3 43 13 IIR RB
F 4 60 23 IIR RB
F 5 26 26 IIA RB
F 6 68 9 IIF RB 17 SEP 2014 USABINIT 2014071 - SVN68 (PRN09) USABLE JDAY 260/2026
LAUNCH 2014062 - SVN68 (PRN09) LAUNCH JDAY 214
16 MAY 2014 FCSTUUFN 2014042 - SVN39 (PRN9) FORECAST OUTAGE JDAY 136/1430 - UNTIL FURTHER NOTICE
GENERAL INFORMATION NANUs
2014018

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014018
SUBJ: SVN64 (PRN30) LAUNCH JDAY 052
1. NANU TYPE: LAUNCH
NANU NUMBER: 2014018
NANU DTG: 210207Z FEB 2014
SVN: 64
PRN: 30
LAUNCH JDAY: 052
LAUNCH TIME ZULU: 0159

2. GPS SATELLITE SVN64 (PRN30) WAS LAUNCHED ON JDAY 052.
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 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/GPSOC/GPS
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514. COMM 805-606-3514.
JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014019

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014019
SUBJ: SVN36 (PRN06) DECOMMISSIONING JDAY 052/2200
1. NANU TYPE: DECOM
NANU NUMBER: 2014019
NANU DTG: 212208Z FEB 2014
REFERENCE NANU: 2014015
REF NANU DTG: 141612Z FEB 2014
SVN: 36
PRN: 06
UNUSABLE START JDAY: 052
UNUSABLE START TIME ZULU: 1501
UNUSABLE START CALENDAR DATE: 21 FEB 2014
DECOMMISSIONING JDAY: 052
DECOMMISSIONING TIME ZULU: 2200
DECOMMISSIONING CALENDAR DATE: 21 FEB 2014

2. CONDITION: GPS SATELLITE SVN36 (PRN06) WAS UNUSABLE AS OF JDAY 052 (21 FEB 2014)
AND REMOVED FROM THE GPS CONSTELLATION ON JDAY 052 (21 FEB 2014).

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014032

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014032 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
ON APPROXIMATELY 03 APR 2014, SVN49 WILL RESUME TRANSMITTING L-BAND UTILIZING PRN06. AT L-BAND ACTIVATION, SVN49/PRN06 WILL BE UNUSABLE UNTIL FURTHER NOTICE. ADDITIONALLY, NO BROADCAST ALMANACS WILL INCLUDE SVN49/PRN06 UNTIL FURTHER NOTICE.
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014038

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014038 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
THE PURPOSE OF THIS NOTIFICATION IS TO INFORM USERS OF AN UPCOMING EVENT RELATED TO THE GPS SATELLITE CONSTELLATION. AIR FORCE SPACE COMMAND WILL BE IMPLEMENTING CNAV MESSAGES ON THE GPS L2C AND L5 SIGNALS BEGINNING J118/1430Z WITH UPDATES FROM THE CONTROL SEGMENT APPROXIMATELY TWICE PER WEEK. THE MESSAGE POPULATED SIGNAL CONTENT WILL INCLUDE BROADCAST MESSAGE TYPES (MT) 10, 11, 12, 30, AND 33. THERE ARE NO PLANNED GPS SATELLITE OUTAGES OR DEGRADATIONS FOR THIS ACTIVITY. L2C AND L5 CNAV MESSAGES SHOULD BE TRANSPARENT TO GPS RECEIVERS THAT DO NOT PROCESS L2C OR L5 CNAV MESSAGES. THESE POPULATED SIGNALS ARE INTENDED TO FACILITATE USER FAMILIARIZATION AND DEVELOPMENT OF COMPATIBLE USER EQUIPMENT.

NOTE: UNTIL FURTHER NOTICE, THE L2C AND L5 SIGNALS ARE CONSIDERED PRE-OPERATIONAL. A PRE-OPERATIONAL SIGNAL MEANS THE AVAILABILITY AND OTHER CHARACTERISTICS OF THE BROADCAST SIGNAL MAY NOT COMPLY WITH ALL REQUIREMENTS OF THE RELEVANT INTERFACE SPECIFICATIONS AND SHOULD BE EMPLOYED AT THE USERS? OWN RISK. THEREFORE THESE SIGNALS SHOULD NOT BE USED FOR SAFETY-OF-LIFE OR OTHER CRITICAL PURPOSES. ANY MILITARY OR CIVIL USERS WHO ENCOUNTER USER EQUIPMENT PROBLEMS FOLLOWING MESSAGE POPULATION OF THE L2C AND L5 SIGNALS SHOULD CONTACT THE APPLICABLE POCS IDENTIFIED BELOW AS SOON AS POSSIBLE. AVIATION USERS SHOULD FILE REPORTS CONSISTENT WITH FAA-APPROVED PROCEDURES.
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014039

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014039 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
REFERENCE NANU 2014038. UPDATE:


THE PURPOSE OF THIS NOTIFICATION IS TO INFORM USERS THAT THE CNAV MESSAGES ON THE GPS L2C AND L5 SIGNALS BEGINNING ON APPROXIMATELY J118/1430Z, WILL INCLUDE BROADCAST MESSAGE TYPES (MT) 10, 11, 30, AND 33, BUT WILL EXCLUDE BROADCAST MT 12.


ADDITIONALLY, THE CNAV MESSAGE HEALTH BITS WILL INDICATE THAT THE L1 AND L2 SIGNALS ARE HEALTHY, BUT THAT THE L5 SIGNAL IS UNHEALTHY. THE CNAV MESSAGE HEALTH BITS MAY FUNCTION INDEPENDENTLY FROM THE LEGACY MESSAGE HEALTH BITS AND SHOULD NOT BE CONSIDERED RELIABLE INDICATORS OF SIGNAL QUALITY OR PERFORMANCE DURING PRE-OPERATIONAL USE.


REMINDER: UNTIL FURTHER NOTICE, THE L2C AND L5 SIGNALS ARE CONSIDERED PRE-OPERATIONAL. A PRE-OPERATIONAL SIGNAL MEANS THE AVAILABILITY AND OTHER CHARACTERISTICS OF THE BROADCAST SIGNAL MAY NOT COMPLY WITH ALL REQUIREMENTS OF THE RELEVANT INTERFACE SPECIFICATIONS AND SHOULD BE EMPLOYED AT THE USERS? OWN RISK. THEREFORE THESE SIGNALS SHOULD NOT BE USED FOR SAFETY-OF-LIFE OR OTHER CRITICAL PURPOSES. ANY MILITARY OR CIVIL USERS WHO ENCOUNTER USER EQUIPMENT PROBLEMS FOLLOWING MESSAGE POPULATION OF THE L2C AND L5 SIGNALS SHOULD CONTACT THE APPLICABLE POCS IDENTIFIED BELOW AS SOON AS POSSIBLE. AVIATION USERS SHOULD FILE REPORTS CONSISTENT WITH FAA-APPROVED PROCEDURES.
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014045

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014045
SUBJ: SVN67 (PRN06) LAUNCH JDAY 137
1. NANU TYPE: LAUNCH
NANU NUMBER: 2014045
NANU DTG: 170002Z MAY 2014
SVN: 67
PRN: 06
LAUNCH JDAY: 137
LAUNCH TIME ZULU: 0003

2. GPS SATELLITE SVN67 (PRN6) WAS LAUNCHED ON JDAY 137.
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 OPERATIONS CENTER AT HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, GPS_SUPPORT@SCHRIEVER.AF.MIL, HTTP://GPS.AFSPC.AF.MIL/GPSOC/GPS
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514. COMM 805-606-3514.
JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014046

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014046
SUBJ: SVN39 (PRN9) DECOMMISSIONING JDAY 139/2200
1. NANU TYPE: DECOM
NANU NUMBER: 2014046
NANU DTG: 192222Z MAY 2014
REFERENCE NANU: 2014042
REF NANU DTG: 121949Z MAY 2014
SVN: 39
PRN: 9
UNUSABLE START JDAY: 139
UNUSABLE START TIME ZULU: 1435
UNUSABLE START CALENDAR DATE: 19 MAY 2014
DECOMMISSIONING JDAY: 139
DECOMMISSIONING TIME ZULU: 2200
DECOMMISSIONING CALENDAR DATE: 19 MAY 2014

2. CONDITION: GPS SATELLITE SVN39 (PRN9) WAS UNUSABLE AS OF JDAY 139 (19 MAY 2014)
AND REMOVED FROM THE GPS CONSTELLATION ON JDAY 139 (19 MAY 2014).

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014050

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014050 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
ON APPROXIMATELY 13 JUN 2014 SVN39 WILL RESUME TRANSMITTING L-BAND UTILIZING PRN09. AT L-BAND ACTIVATION, SVN39/PRN09 WILL BE UNUSABLE UNTIL FURTHER NOTICE. ADDITIONALLY, NO BROADCAST ALMANACS WILL INCLUDE SVN39/PRN09 UNTIL FURTHER NOTICE.
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014062

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014062
SUBJ: SVN68 (PRN09) LAUNCH JDAY 214
1. NANU TYPE: LAUNCH
NANU NUMBER: 2014062
NANU DTG: 020344Z AUG 2014
SVN: 68
PRN: 09
LAUNCH JDAY: 214
LAUNCH TIME ZULU: 0323

2. GPS SATELLITE SVN68 (PRN09) WAS LAUNCHED ON JDAY 214.
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 OPERATIONS CENTER AT HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, GPS_SUPPORT@SCHRIEVER.AF.MIL, HTTP://GPS.AFSPC.AF.MIL/GPSOC/GPS
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514. COMM 805-606-3514.
JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014063

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014063
SUBJ: SVN33 (PRN03) DECOMMISSIONING JDAY 214/2200
1. NANU TYPE: DECOM
NANU NUMBER: 2014063
NANU DTG: 022214Z AUG 2014
REFERENCE NANU: 2014060
REF NANU DTG: 251817Z JUL 2014
SVN: 33
PRN: 03
UNUSABLE START JDAY: 214
UNUSABLE START TIME ZULU: 1959
UNUSABLE START CALENDAR DATE: 02 AUG 2014
DECOMMISSIONING JDAY: 214
DECOMMISSIONING TIME ZULU: 2200
DECOMMISSIONING CALENDAR DATE: 02 AUG 2014

2. CONDITION: GPS SATELLITE SVN33 (PRN03) WAS UNUSABLE AS OF JDAY 214 (02 AUG 2014)
AND REMOVED FROM THE GPS CONSTELLATION ON JDAY 214 (02 AUG 2014).

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014069

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014069 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
ON APPROXIMATELY 05 SEP 2014 SVN35 WILL RESUME TRANSMITTING L-BAND UTILIZING PRN03. AT L-BAND ACTIVATION, SVN35/PRN03 WILL BE UNUSABLE UNTIL FURTHER NOTICE. ADDITIONALLY, NO BROADCAST ALMANACS WILL INCLUDE SVN35/PRN03 UNTIL FURTHER NOTICE.
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014082

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014082
SUBJ: SVN69 (PRN03) LAUNCH JDAY 302
1. NANU TYPE: LAUNCH
NANU NUMBER: 2014082
NANU DTG: 291804Z OCT 2014
SVN: 69
PRN: 03
LAUNCH JDAY: 302
LAUNCH TIME ZULU: 1721

2. GPS SATELLITE SVN69 (PRN03) WAS LAUNCHED ON JDAY 302.
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 OPERATIONS CENTER AT HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
COMM 719-567-2541, GPS_SUPPORT@SCHRIEVER.AF.MIL, HTTP://GPS.AFSPC.AF.MIL/GPSOC/GPS
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514. COMM 805-606-3514.
JSPOCCOMBATOPS@VANDENBERG.AF.MIL

2014083

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014083
SUBJ: SVN38 (PRN08) DECOMMISSIONING JDAY 303/2245
1. NANU TYPE: DECOM
NANU NUMBER: 2014083
NANU DTG: 302254Z OCT 2014
REFERENCE NANU: 2014078
REF NANU DTG: 241347Z OCT 2014
SVN: 38
PRN: 08
UNUSABLE START JDAY: 303
UNUSABLE START TIME ZULU: 1500
UNUSABLE START CALENDAR DATE: 30 OCT 2014
DECOMMISSIONING JDAY: 303
DECOMMISSIONING TIME ZULU: 2245
DECOMMISSIONING CALENDAR DATE: 30 OCT 2014

2. CONDITION: GPS SATELLITE SVN38 (PRN08) WAS UNUSABLE AS OF JDAY 303 (30 OCT 2014)
AND REMOVED FROM THE GPS CONSTELLATION ON JDAY 303 (30 OCT 2014).

3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://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 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL



GPS Expandable Slot Designations
B D F
B5=B1F D5=D2F F5=F2F
B1-B1A D2=D2A F2=F2A