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Posted by Sam Wormley on May 6, 2011, 9:40 pm
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2011039 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
GPS satellite SVN49 (PRN01) was decommissioned from active service on
JDay 126 (06 May 2011). PRN01 is available for future satellite service.
*** GENERAL MESSAGE TO ALL GPS USERS ***

POC:
CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
MILITARY - GPS OPERATIONS CENTER at HTTP://GPS.AFSPC.AF.MIL/GPSOC,
DSN 560-2541,
COMM 719-567-2541, gps_support@schriever.af.mil,
HTTPS://gps.afspc.af.mil
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514,
COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL



_______________________________________________
NANU one-way mailing list
NANU@cgls.uscg.mil

Posted by Sam Wormley on May 6, 2011, 10:27 pm
On 5/6/11 8:40 PM, Sam Wormley wrote:
> NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2011039 NANU TYPE: GENERAL
> *** GENERAL MESSAGE TO ALL GPS USERS ***
> GPS satellite SVN49 (PRN01) was decommissioned from active service on
> JDay 126 (06 May 2011). PRN01 is available for future satellite service.
> *** GENERAL MESSAGE TO ALL GPS USERS ***
> POC:
> CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
> MILITARY - GPS OPERATIONS CENTER at HTTP://GPS.AFSPC.AF.MIL/GPSOC,
> DSN 560-2541,
> COMM 719-567-2541, gps_support@schriever.af.mil,
> HTTPS://gps.afspc.af.mil
> MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514,
> COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL
> _______________________________________________
> NANU one-way mailing list
> NANU@cgls.uscg.mil

> GPS OPERATIONAL ADVISORY 126.OA1
> SUBJ: GPS STATUS 06 MAY 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)
> 2011035 271542Z APR 2011 11 FCSTDV 123/1700-124/0500
> 2011036 271545Z APR 2011 23 FCSTDV 125/1515-126/0315
> 2011037 040014Z MAY 2011 11 FCSTSUMM 123/1733-124/0000
> 2011038 052140Z MAY 2011 23 FCSTSUMM 125/1551-125/2127
> 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)
> 2011034 211802Z APR 2011 GENERAL /-/
> 2011039 070124Z MAY 2011 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


Posted by claudegps on May 9, 2011, 9:23 am
> NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2011039 NANU TYPE: GENERAL
> *** GENERAL MESSAGE TO ALL GPS USERS ***
> GPS satellite SVN49 (PRN01) was decommissioned from active service on
> JDay 126 (06 May 2011). PRN01 is available for future satellite service.
> *** GENERAL MESSAGE TO ALL GPS USERS ***
> =A0 =A0 POC:
> =A0 =A0 CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
> =A0 =A0 MILITARY - GPS OPERATIONS CENTER at HTTP://GPS.AFSPC.AF.MIL/GPSOC=
,
> DSN 560-2541,
> =A0 =A0 =A0 COMM 719-567-2541, gps_supp...@schriever.af.mil,
> HTTPS://gps.afspc.af.mil
> =A0 =A0 MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN =A0 =A027=
6-3514,
> =A0 =A0 =A0 COMM 805-606-3514, JSPOCCOMBAT...@VANDENBERG.AF.MIL
> _______________________________________________
> NANU one-way mailing list
> N...@cgls.uscg.mil

Why?
Are they using it only for L5 experiments now?

Posted by macpacheco on May 9, 2011, 3:58 pm
> > NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2011039 NANU TYPE: GENERAL
> > *** GENERAL MESSAGE TO ALL GPS USERS ***
> > GPS satellite SVN49 (PRN01) was decommissioned from active service on
> > JDay 126 (06 May 2011). PRN01 is available for future satellite service=
.
> > *** GENERAL MESSAGE TO ALL GPS USERS ***
> > =A0 =A0 POC:
> > =A0 =A0 CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
> > =A0 =A0 MILITARY - GPS OPERATIONS CENTER at HTTP://GPS.AFSPC.AF.MIL/GPS=
OC,
> > DSN 560-2541,
> > =A0 =A0 =A0 COMM 719-567-2541, gps_supp...@schriever.af.mil,
> > HTTPS://gps.afspc.af.mil
> > =A0 =A0 MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN =A0 =A0=
276-3514,
> > =A0 =A0 =A0 COMM 805-606-3514, JSPOCCOMBAT...@VANDENBERG.AF.MIL
> > _______________________________________________
> > NANU one-way mailing list
> > N...@cgls.uscg.mil
> Why?
> Are they using it only for L5 experiments now?

SVN49 L5 function was securing the assigned frequency.
There were originally expecting the first GPS IIF satellite to be
launched before SVN49 has actually launched.
It has a lower power, narrower antenna transmitter.
I wouldn't call its purpose experimenting.
Does that means that even the L5 transponder has been shut down ?
Could they be transmitting a PRN1 L5 only signal (in data less only
mode) ?
Of course, technically, they could shutdown the L5 payload on SVN49.
PRN25 has a normal power, normal beam L5 antenna. That is enough to
secure the L5 assignment. And pretty soon a 2nd IIF bird should be in
orbit.

Marcelo Pacheco

Posted by Sam Wormley on May 9, 2011, 4:42 pm
On 5/9/11 8:23 AM, claudegps wrote:
>> NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2011039 NANU TYPE: GENERAL
>> *** GENERAL MESSAGE TO ALL GPS USERS ***
>> GPS satellite SVN49 (PRN01) was decommissioned from active service on
>> JDay 126 (06 May 2011). PRN01 is available for future satellite service.
>> *** GENERAL MESSAGE TO ALL GPS USERS ***
>> POC:
>> CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
>> MILITARY - GPS OPERATIONS CENTER at HTTP://GPS.AFSPC.AF.MIL/GPSOC,
>> DSN 560-2541,
>> COMM 719-567-2541, gps_supp...@schriever.af.mil,
>> HTTPS://gps.afspc.af.mil
>> MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514,
>> COMM 805-606-3514, JSPOCCOMBAT...@VANDENBERG.AF.MIL
>> _______________________________________________
>> NANU one-way mailing list
>> N...@cgls.uscg.mil
> Why?
> Are they using it only for L5 experiments now?

Satellite Freq.
PRN/SVN Plane Std # Block Comments
---------+-------+-----+----------+-------------------------------------------------------------
01/49 B6 Rb2 IIR-20/M7 Launched: 24 March 2009...set
healthy ???...maybe never...
...Decommissioned on 26 March 2009...

01/49 B6 Rb2 IIR-20/M7 >>>Decommissioned on 06 May 2011<<<

The SV had problems... Decommissioning usually means kicking it into
a higher orbit and letting it RIP.


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