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GPS Modernization

L-Band Activated on First Block IIF GPS Satellite

June 7, 2010


The L-band transmitters (at least L1 and L2) of the first Block IIF satellite in orbit, designated SVN-62/PRN-25, were activated on Sunday, June 6, according to data collected by certain stations of the International GNSS Service.

The satellite remains set unhealthy, however, and is still about 270 kilometers above the orbital B plane on the way to its intended B2 orbit slot.

The satellite was launched May 27.

The GPS IIF satellite is expected to provide greater navigational accuracy to users through improvements in atomic clock technology and deliver a more robust signal for commercial aviation and search and rescue known as the third civil signal (L5). The improvements also include an on-board reprogrammable processor, which will continue to deploy the modernization efforts of the IIR-M satellites, a 12 year design life, and a more robust military signal.


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Re: L-Band Activated on First Block IIF GPS Satellite
by: springinhetveld
on:
June 10, 2010 - 3:10pm

So far all looks good with the new IIF satellite. Code and phase residuals are normal and the orbit is reasonable. Lets hope the L5 works as well and that we will soon see some data from it. That will be really interesting as it gives access to 3 frequencies and thus opens up a whole new GNSS world.

Will try to give some detailed results of SVN-62/PRN25 on my BLOG in the next few days (http://www.positim.com/index_gnss.html).

Tim