NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016023 SUBJ: SVN45 (PRN21) FORECAST OUTAGE JDAY 078/1800 - JDAY 079/0600 1 NANU TYPE: FCSTMX NANU NUMBER: 2016023 NANU DTG: 162130Z MAR 2016 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 45 PRN: 21 START JDAY: 078 START TIME ZULU: 1800 START CALENDAR DATE: 18 MAR 2016 STOP JDAY: 079 STOP TIME ZULU: 0600 STOP CALENDAR DATE: 19 MAR 2016

1. CONDITION: GPS SATELLITE SVN45 (PRN21) WILL BE UNUSABLE ON JDAY 078 (18 MAR 2016) BEGINNING 1800 ZULU UNTIL JDAY 079 (19 MAR 2016) ENDING 0600 ZULU

2. 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