GPS OPERATIONAL ADVISORY �������091
SUBJ: GPS STATUS �����01 APR 2011

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, 11, 12, 13, 14
��PLANE ��: SLOT B11, D1, C2, D4, E3, C5, A4, A3, A1, E6, D2, B4, F3,
F1
��CLOCK ��: �����RB, RB, CS, RB, RB, RB, RB, CS, CS, CS, RB, RB, RB, RB
��BLOCK II: PRNS 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28
��PLANE ��: SLOT F2, B1, C4, E4, C3, E1, D3, E2, F4, D21, B2, F21, A6,
B3
��CLOCK ��: �����RB, RB, RB, RB, RB, RB, RB, RB, RB, CS, RB, RB, CS, RB
��BLOCK II: PRNS 29, 30, 31, 32
��PLANE ��: SLOT C1, B21, A2, E5
��CLOCK ��: �����RB, CS, RB, RB
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)

2011019 ������072252Z MAR 2011 ���25 ��FCSTMX ������075/1830-076/1830 �
2011021 ������162329Z MAR 2011 ���25 ��FCSTSUMM ����075/1905-075/2328 �
2011022 ������171945Z MAR 2011 ���25 ��FCSTMX ������080/2100-081/0300 �
2011023 ������220227Z MAR 2011 ���25 ��FCSTEXTD ����080/2233-/ �
2011024 ������220734Z MAR 2011 ���25 ��FCSTSUMM ����080/2233-081/0715 �
2011025 ������281650Z MAR 2011 ���18 ��FCSTDV ������095/1520-096/0320 �
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)

2009025 ������061455Z APR 2009 ��������GENERAL �����/-/ �
3. REMARKS:
A. THE POINT OF CONTACT FOR GPS MILITARY OPERATIONAL SUPPORT IS THE GPS
OPERATIONS CENTER AT (719)567-2541 OR DSN 560-2541.
B. CIVILIAN: �FOR INFORMATION, CONTACT US COAST GUARD NAVCEN AT
COMMERCIAL (703)313-5900 24 HOURS DAILY AND INTERNET
HTTP://WWW.NAVCEN.USCG.GOV
C. MILITARY SUPPORT WEBPAGES CAN BE FOUND AT THE FOLLOWING
HTTPS://GPS.AFSPC.AF.MIL/GPS OR HTTP://GPS.AFSPC.AF.MIL/GPSOC