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  GPS IIF-9 to Launch March 25, 2015

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Author Topic:   GPS IIF-9 to Launch March 25, 2015
jimh posted 03-22-2015 03:08 PM ET (US)   Profile for jimh   Send Email to jimh  
The launch of the ninth GPS satellite in the II-F series is scheduled for Wednesday, March 25, 2015, with a launch window opening at 2:26 p.m. from Cape Canaveral, Florida.

The IIF-9 satellite will be first GPS launch of 2015. The satellite is believed to be designated SVN-71 and to use PRN-26. The intended orbital plane is believed to be B1F. This data from

The satellite will be carried into orbit atop a DELTA IV Medium+ (4,2) launch vehicle.

A webcast of the launch will be available on launch day from

The GPS IIF series of satellites carry the legacy signals, L1 C/A, L1 P(Y),and L2 P(Y). They add new signals for civilian use at the L2 and L5 carrier, and improve military signals at the L1 and L2 carriers. More information on the GPS IIF series from

jimh posted 03-26-2015 11:08 AM ET (US)     Profile for jimh  Send Email to jimh     
The launch was a success. See many details at gps-iif-9-successfully-lifts-off-from-cape-canaveral/

jimh posted 03-27-2015 11:31 AM ET (US)     Profile for jimh  Send Email to jimh     
There is a condensed recording of the pre-launch and launch of GPS IIF-9 available on YouTube at

The skill in photographing, editing, and setting to music used in making this recording is at a level that is appropriately high to match the skill in creating and launching the satellite. It is quite worth the two-minutes time to play it.

A longer, 4-minute recording in very high definition with excellent sound shows a launch-pad ground-level view of the launch. Watch and listen with good sound reproduction equipment to enjoy this to the fullest:

A super-SLO-MO version is also available:

The first two minutes of the above are quite interesting.

jimh posted 03-27-2015 03:33 PM ET (US)     Profile for jimh  Send Email to jimh     
A replay of the live streaming broadcast is also available at:

jimh posted 04-01-2015 10:08 AM ET (US)     Profile for jimh  Send Email to jimh     
The last week of March was a very busy month for launches of GNSS space vehicles. China sent up a new BEiDOU satellite. India launched an IRNSS satellite. And the European consortium lofted two more GALILEO satellites. Reports can be found at:


IRNSS: indian-navigation-system-gets-expansion-with-pslv-launch/

GALILEO: arianespace-soyuz-st-b-galileo-fm0304/

jimh posted 04-29-2015 09:48 AM ET (US)     Profile for jimh  Send Email to jimh     
The status of GPS IIF-9 satellite was set to "USABLE" on April 20, 2015.

SVN71 (PRN26) USABLE JDAY 110/2222

SUBJ: SVN71 (PRN26) USABLE JDAY 110/2222...

(20 APR 2015) BEGINNING 2222 ZULU.

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