[time-nuts] SV 27 Not OK

[Mark C. Stephens]

A new one!
Thanks for putting me "in the know" then :)


-marki

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On Behalf Of Jim Lux
Sent: Wednesday, 5 June 2013 12:48 AM
To: time-nuts at febo.com
Subject: Re: [time-nuts] SV 27 Not OK

And we received signals from it on ISS at 1400Z this morning (we've got an experimental software defined receiver doing a 48 hour test right now). Shiny, new satellite only a few weeks old: I guess it works. At least we were able to lock.  It's still being commissioned, so it's presumably marked "don't use for nav"



On 6/3/13 2:17 PM, Magnus Danielson wrote:
> On 06/03/2013 06:25 AM, Mark C. Stephens wrote:
>> I see they have retired USA-84. http://en.wikipedia.org/wiki/USA-84
>> It is still up there transmitting though. Perhaps it won't turn off 
>> :)
>
> Just because you receive PRN 27 does not mean that SVN 27 is 
> transmitting it. Checking modern status and NANU at 
> http://www.navcen.uscg.gov/?Do=constellationstatus
>
> discloses:
>
> 2013031
>
> NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2013031
> SUBJ: SVN66 (PRN27) LAUNCH JDAY 135
> 1. NANU TYPE: LAUNCH
> NANU NUMBER: 2013031
> NANU DTG: 152256Z MAY 2013
> SVN: 66
> PRN: 27
> LAUNCH JDAY: 135
> LAUNCH TIME ZULU: 2138
>
> 2. GPS SATELLITE SVN66 (PRN27) WAS LAUNCHED ON JDAY 135.
> A USABINIT NANU WILL BE SENT WHEN THE SATELLITE IS SET ACTIVE TO SERVICE.
>
> 3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV 
> MILITARY - GPS OPERATIONS CENTER AT HTTPS://GPS.AFSPC.AF.MIL/GPSOC, 
> DSN 560-2541, COMM 719-567-2541,GPSOPERATIONSCENTER at US.AF.MIL , 
> HTTPS://GPS.AFSPC.AF.MIL/GPSOC/GPS
> MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514. COMM 
> 805-606-3514.
> JSPOCCOMBATOPS at VANDENBERG.AF.MIL
>
> so SVN66 now has PRN27.
>
> Cheers,
> Magnus
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