Current GPS Satellite Data 18-Jan-2008

Current GPS Satellite Data


The following satellite information is provided by the National
Geospatial-Intelligence
Agency (NGA) GPS Division. This information is supplied for all who have an
interest in GPS.
For more satellite/station information, see the latest documentation on the NGA
GPS Document
Page, December 2007.


Satellite Freq.
PRN/SVN Plane Std # Block Comments
---------+-------+-----+----------+-----------------------------------------------------
01/32 F6 Cs3 IIA
02/61 D1 Rb3 IIR
03/33 C2 Cs4 IIA
04/34 D4 Rb1 IIA
05/35 B5 Rb1 IIA
06/36 C5 Rb1 IIA
07/##
08/38 A3 Cs3 IIA
09/39 A1 Cs4         IIA
10/40 E3 Rb1 IIA Clock swap, 18 september 2007, from Cs4 to
Rb1...
11/46 D2 Rb1 IIR
12/58 B4 Rb3 IIR-16/M3
13/43 F3 Rb1 IIR
14/41 F1 Rb1 IIR
15/55 F2 Rb3 IIR-17/M4 Launched: 17 October 2007...set healthy 31
October 2007...
16/56 B1 Rb3 IIR
17/53 C4 Rb3 IIR-14/M1
18/54 E4 Rb1 IIR
19/59 C3 Rb3 IIR
20/51 E1 Rb1 IIR
21/45 D3 Rb3 IIR
22/47 E2 Rb3 IIR
23/60 F4 Rb2 IIR
24/24^ D5 Cs4 IIA Placed in AMMM (Mode 5) on 4 January 2005...
25/25 A5 Rb1 IIA
26/26 F5 Rb1 IIA
27/27 A4 Cs4 IIA
28/44 B3 Rb2 IIR
29/57 C1 Rb3 IIR-18/M5 Launched: 20 December 2007...set healthy 2
January 2008...
30/30 B2 Cs3 IIA
31/52 A2 Rb3 IIR-15/M2

32/23 E5 Rb2 IIA Old SVN23/PRN23...Reinstatement on 27 June
2007...
note NANU 2007081...
---------+-------+-----+----------+-----------------------------------------------------
----------------------------------------------------------------------------------------

Satellite Freq.
PRN/SVN Plane Std # Block
---------+-------+-----+----------+------Recent-Decommissionings------------------------

---------+-------+-----+----------+-Scheduled-Upcoming-Launches-------------------------
##/49 ?? Rb? IIR-19/M6 Scheduled launch: NET 13 March 2008...
##/48 ?? Rb? IIR-20/M7 Scheduled launch: NET 30 June 2008...
##/50 ?? Rb? IIR-21/M8 Scheduled launch: NET 11 September 2008...

---------+-------+-----+----------+------Unfortunate-Happenings-------------------------
12/42 -- --- IIR Destroyed during Launch (1997)
20/50 -- --- IIR Moisture Seepage at Pre-Launch (1999): Got
Wet (DNL)

---------+-------+-----+----------+-----------------------------------------------------
----------------------------------------------------------------------------------------

* 3 Wheel Vehicles/Autonomous Momentum Dumps at 0.2 or 0.8 sec.
** Pitch, Roll, P&R at 0.4, 1.6, and 1.6+ sec (manual momentum dumps)
^ AMMM - Autonomous Magnetic Momentum Management (Mode 5)
+ Experiences glint firings prior to and after eclipse season...glint
firings are
due to sunlight entering/disorienting sensors causing small thrusts
non-operational
DNL - Did Not Launch
GLAN - Geographic Longitude of the Ascending Node
UFN - Until Further Notice
NET - No Earlier Than
TBD - To Be Determined
-------------------------------------------------------------------------------------

For civilian information, contact the United States Coast Guard (NAVCEN) at
(703)313-5900, 24 hours daily, or go to their web-site at:
http://www.navcen.uscg.gov
For military information, contact the GPS Support Center, 2SOPS, Schriever Air
Force Base, Colorado, at (719)567-2541 or DSN 560-2541,
GPS@Schriever.af.mil.


Additional link(s):


Schriever AFB GPS
Aerospace GPS






Point of Contact: GPS Division
Phone Numbers:
Com. (314)263-4120
DSN 693-4120
Email: gps@nga.mil

Document last modified Friday, 18-Jan-2008 12:39:27 EST