NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2015027 SUBJ: SVN54 (PRN18) FORECAST OUTAGE JDAY 114/0000 - JDAY 114/1200 1 NANU TYPE: FCSTDV NANU NUMBER: 2015027 NANU DTG: 171631Z APR 2015 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 54 PRN: 18 START JDAY: 114 START TIME ZULU: 0000 START CALENDAR DATE: 24 APR 2015 STOP JDAY: 114 STOP TIME ZULU: 1200 STOP CALENDAR DATE: 24 APR 2015

1. CONDITION: GPS SATELLITE SVN54 (PRN18) WILL BE UNUSABLE ON JDAY 114 (24 APR 2015) BEGINNING 0000 ZULU UNTIL JDAY 114 (24 APR 2015) ENDING 1200 ZULU

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