SUBJ: GPS STATUS 30 Apr 1999
1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : NONE
B. BLOCK II: PRNS  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 13, 14, 15, 16,
   PLANE   : SLOT F1, B3, C2, D4, B4, C1, C4, A5, A1, E3, F5, E1, D2, E5,
   CLOCK   :      CS, CS, CS, RB, CS, CS, CS, RB, CS, CS, RB, CS, CS, CS,
   BLOCK II: PRNS 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31
   PLANE   : SLOT D3, F3, A4, E2, B1, E4, D1, A2, F2, A3, F4, B2, C3
   CLOCK   :      CS, CS, RB, CS, RB, CS, RB, CS, RB, CS, RB, CS, CS
2. CURRENT ADVISORIES AND FORECASTS :
A. FORECASTS:           FOR SEVEN DAYS AFTER EVENT CONCLUDES.
NANU          MSG DATE/TIME       PRN  TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)
1999043       192156Z APR 1999      27   FCSTMX       113/0800-113/2200
1999045       231607Z APR 1999      27   FCSTMX       115/0700-115/2100
1999046       231927Z APR 1999      27   FCSTMX       117/0700-117/2100
1999047       231945Z APR 1999      27   FCSTMX       118/0700-118/2100
1999048       231953Z APR 1999      27   FCSTSUMM     113/0730-113/1940
1999049       252041Z APR 1999      27   FCSTSUMM     115/0722-115/2058
1999051       271425Z APR 1999      27   FCSTRESCD    119/0700-119/2200
1999052       271445Z APR 1999      27   FCSTMX       121/0600-121/2200
1999053       271450Z APR 1999      03   FCSTMX       123/2100-124/0900
1999054       271452Z APR 1999      15   FCSTDV       125/0300-125/1500
1999055       271929Z APR 1999      27   FCSTSUMM     117/0824-117/1859
1999056       271946Z APR 1999      27   FCSTCANC     119/0700-/
B. ADVISORIES:
NANU          MSG DATE/TIME     PRN    TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)
1999044         200656Z APR 1999    07     UNUSUFN      110/0437-/
1999050         261552Z APR 1999    07     UNUSABLE     110/0437-116/1533
C. GENERAL:
NANU          MSG DATE/TIME     PRN    TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)
3. REMARKS:
A. ANTI-SPOOF WAS DEACTIVATED ON JDAY 033 (02 FEB 97) AT OOOOZ.
ANTI-SPOOF WAS REACTIVATED ON JDAY 055 (24 FEB 97) AT 0000Z.
B. THE FREQUENCY STANDARD ON SVN22 WAS CHANGED TO A RB ON 7 OCT 98.
THE FREQUENCY STANDARD FOR SVN34 WAS CHANGED TO A RB ON 14 SEP 98.
C. THE POINT OF CONTACT FOR GPS MILITARY OPERATIONAL SUPPORT IS CMDR BROOMFIELD
(719)554-5770 OR DSN 692-5770.
D. CIVILIAN:  FOR INFORMATION, CONTACT US COAST GUARD NAVCEN AT
COMMERCIAL (703)313-5900 24 HOURS DAILY, COMPUTER BBS (703)313-5910,
AND INTERNET HTTP://WWW.NAVCEN.USCG.MIL OR FTP://FTP.NAVCEN.USCG.MIL.
E. MILITARY: FOR INFORMATION, CONTACT CAPT TONY OCCHI, 2SOPS/DOAN
NAVIGATION ANALYST AT (719)567-6378, DSN 560-6378, OR INTERNET HTTP://WWW.SCHRIEVER.AF.MIL/GPS.