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GPS Satellite IIF-8
|Author||Topic: GPS Satellite IIF-8|
posted 10-28-2014 10:31 PM ET (US)
The eighth satellite in the GPS IIF series is scheduled for launch on Wednesday, October 29, 2014 from Cape Canveral, Florida. The launch window begins at 1:21 p.m. EDT. The launch vehicle will again be an Atlas V 401 rocket. This launch will be the fourth GPS satellite launch this year.
The space vehicle is designated SVN-69. The GPS signals will use PRN code 03. The orbit is intended for the E-plane in Slot 1.
If all goes according to plan, the almost 17-year-old SVN-38 (PRN-08) will be removed from the operational constellation of GPS satellites, and several other satellites will move orbits or change status.
The GPS IIF series of satellites are part of the "follow-on" Phase II deployment, for which a total of 12 satellites are planned.
A live webcast should be available from
A mission brochure is available from
The Atlas V uses the Russian made RD-180 main rocket engine, and as noted previously, there is now concern about the reliability of the supply of these engines due to an increase in diplomatic tension between the USA and Russia. For details, see
posted 10-29-2014 06:03 PM ET (US)
All reports indicate a successful launch, and the satellite payload is in orbit and working properly.
posted 10-30-2014 10:02 AM ET (US)
An extremely detailed and comprehensive article summarizes the launch of the GPS IIF-8 satellite at
posted 01-16-2015 01:30 PM ET (US)
The eighth GPS satellite in the IIF-series, GPS IIF-8, designated SVN69, and sending PRN code PRN03 was set to usable on December 12, 2014, according to an update under the section RECENT DEVELOPMENTS listed at
Here is a copy of the official notice:
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014090
2. CONDITION: GPS SATELLITE SVN69 (PRN03) WAS USABLE AS OF JDAY 346
3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
posted 01-17-2015 01:25 PM ET (US)
Here is a satellites-in-view graphic showing the now-operational PRN03 GPS IIF-8 coming over my house yesterday.
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