SUBJ: GPS STATUS 29 Jan 98
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, 14, 15, 16, 17,
   PLANE   : SLOT F1, B3, C2, D4, B4, C1, C4, A5, A1, E3, E1, D2, E5, D3,
   CLOCK   :      CS, CS, CS, CS, CS, CS, CS, RB, CS, CS, CS, CS, CS, CS,
   BLOCK II: PRNS 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
   PLANE   : SLOT F3, A4, E2, B1, E4, D1, A2, F2, A3, C5, F4, B2, C3
   CLOCK   :      CS, RB, CS, CS, CS, RB, CS, CS, CS, 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)
98011         151812Z JAN 98    08     FCSTDV       022/0000-022/1200
98013         202353Z JAN 98    16     FCSTDV       024/0830-024/2030
98015         221316Z JAN 98    08     FCSTEXTD     022/1200-023/UFN
98016         240206Z JAN 98    08     FCSTSUMM     022/0106-025/0102
98017         241010Z JAN 98    08     FCSTSUMM     022/0106-024/0102
98018         241503Z JAN 98    16     FCSTSUMM     024/0853-024/1425
B. ADVISORIES:
NANU          MSG DATE/TIME     PRN    TYPE         SUMMARY (JDAY/ZULU TIME START - STOP)
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. SELECTIVE AVAILABILITY WAS REACTIVATED AT STANDARD POSITIONING
SERVICE ACCURACY LEVELS ON DAY 182 (01 JUL 91) AT 0400 UTC.
VARIATIONS MAY BE SEEN IN THE EFFECT OF SA DURING TESTING, BUT THE
EFFECT SHOULD NOT EXCEED STANDARD POSITIONING LEVELS. THE POINT OF
CONTACT IS LTCOL DAVIS (719)554-2634 OR DSN 692-2634.
C. 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.
D. MILITARY: FOR INFORMATION, CONTACT 2LT BRIAN BARKER, 2SOPS/DOAN
NAVIGATION ANALYST AT (719)567-6378, DSN 560-6378, COMPUTER BBS
(719)567-6379, OR INTERNET HTTP://WWW.FAFB.AF.MIL/GPS.