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The Space Force Second Space Operations Squadron (2 SOPS) has issued an Initial Use (USABINIT) NANU for SVN-75, the second of the new generation of GPS-III satellites. SVN-75 was launched on 22 August of 2019, JDAY 234 2019, and having successfully undergone rigorous operational testing on orbit, SVN-75/PRN-18 has taken its place in the active GPS constellation with the slot and plane designation of D6.
Constellation changes: SVN-45/PRN-21 is being re-phased from D3 to D2F replacing SVN46. Upon its arrival SVN 46/PRN11 will then be moved to residual status in LADO. SVN-60/PRN23 was decommissioned on 2 March 2020, 8.5 years beyond expected service life. SVN-60 was the 12th IIR to go in to orbit, beginning service on 09 July 2004.
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NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2020015
SUBJ: SVN75 (PRN18) USABLE JDAY 092/1945
- NANU TYPE: USABINIT
NANU NUMBER: 2020015
NANU DTG: 011942Z APR 2020
REFERENCE NANU: N/A
REF NANU DTG: N/A
SVN: 75
PRN: 18
START JDAY: 092
START TIME ZULU: 1945
START CALENDAR DATE: 01 APR 2020
STOP JDAY: N/A
STOP TIME ZULU: N/A
STOP CALENDAR DATE: N/A
- CONDITION: GPS SATELLITE SVN75 (PRN18) WAS USABLE AS OF JDAY 092
(01 APR 2020) BEGINNING 1945 ZULU.
- 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
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Rick Hamilton
CGSIC Executive Secretariat
GPS Information Analysis Team Lead
U.S. Coast Guard Navigation Center
703-313-5930
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