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,[email protected] ,
HTTPS://GPS.AFSPC.AF.MIL/GPSOC/GPS
MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514. COMM
805-606-3514.
[email protected]
so SVN66 now has PRN27.
Cheers,
Magnus
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