SUBJ: GPS STATUS 12 JUN 91
1. SATELLITES, PLANES AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : PRNS  3,  6, 11, 12, 13
   PLANE   : SLOT C4, A3, C3, A1, C1
   CLOCK   :      RB, RB, CS, CS, CS
B. BLOCK II: PRNS  2, 14, 15, 16, 17, 18, 19, 20, 21, 23
   PLANE   : SLOT B3, E1, D2, E3, D3, F3, A4, B2, E2, E4
   CLOCK   :      CS, CS, CS, CS, CS, CS, CS, CS, CS, CS
2. CURRENT ADVISORIES (ADV) AND FORECASTS (FCST):
INFORMATION IS REPEATED FOR SEVEN DAYS AFTER EVENT CONCLUDES.
A. FORECASTS:
NANU      MSG DATE/TIME   PRN    TYPE  SUMMARY
101-91155 291446Z MAY 91  PRN17  FCST  UNUSABLE 155/0100-155/1900
                          PRN19  FCST  UNUSABLE 157/1200-158/0000
110-91168 121518Z JUN 91  PRN20  FCST  UNUSABLE 168/1700-169/0500
B. ADVISORIES:
NANU      MSG DATE/TIME   PRN    TYPE  SUMMARY
106-91155 041449Z JUN 91  PRN17  ADV   UNUSABLE 155/0123-155/0750
107-91157 061342Z JUN 91  PRN3   ADV   UNUSABLE 157/0100-157/0110
108-91162 111403Z JUN 91  PRN11  ADV   UNUSABLE 162/0446-162/0459
109-91162 121450Z JUN 91  PRN3   ADV   UNUSABLE 162/1600-162/1615
                          PRN3   ADV   UNUSABLE 162/1629-162/1650
3. POINTS OF CONTACT:
A. CIVILIAN: US COAST GUARD AT COMMERCIAL (703)866-3806 VOICE OR
(703)866-3890 COMPUTER BBS.
B. MILITARY: 2SCS/DOCI MAJ WILLIAM FAUVER AT (719)550-6379 OR DSN
560-6379.