From: Richard Langley <lang@unb.ca>

---2003017---
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2003017
SUBJ: SVN56 (PRN16) USABLE JDAY 049/1553
1.     NANU TYPE: USABINIT
      NANU NUMBER: 2003017
      NANU DTG: 181559Z FEB 2003
      REFERENCE NANU: N/A
      REF NANU DTG: N/A
      SVN: 56
      PRN: 16
      START JDAY: 049
      START TIME ZULU: 1553
      START CALENDAR DATE: 18 FEB 2003
      STOP JDAY: N/A
      STOP TIME ZULU: N/A
      STOP CALENDAR DATE: N/A
2.  CONDITION: GPS SATELLITE SVN56 (PRN16) WAS USABLE AS OF JDAY 049
   (18 FEB 2003) BEGINNING 1553 ZULU.
3.  POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV
   MILITARY - GPS Support Center, DSN 560-2541,
   COMM 719-567-2493, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS