GPS IIF-12 satellite is now active

February 11, 2016By

The last Block IIF satellite, launched on Feb. 9, is active. “All-in-view” tracking stations of the International GNSS Service (IGS) network have been receiving its signals since Feb 10. The satellite’s designation is PRN32/SVN70. That PRN is already included in the analysis by the Center for Orbit Determination in Europe (CODE). The IGS orbit products will now cover 57 satellites (32 GPS plus 25... read more

This article is tagged with and posted in GNSS, Latest News

System of Systems: GPS III bidding, testing

February 9, 2016By
IRNSS 1D in earlier lab testing.

GPS III Bidding Opens — Again The GPS Directorate at the Space and Missile Systems Center (SMC) continues to look for someone to build 22 GPS III satellites in the near future. SMC issued a request for proposals on Jan. 8, with rather complicated terms. The first eight GPS III satellites are already under contract, and two have been built,... read more

Russia launches GLONASS-M 51 into orbit

February 8, 2016By

A GLONASS-M satellite was launched into orbit on Feb. 7 at 03:21 Moscow time from the Plesetsk Cosmodrome spaceport, reports the Russian space agency Roscosmos.  The Russian Defense Ministry successfully launched GLONASS-M 51 (known as 751 in orbit) aboard a Soyuz-2.1b rocket with a Fregat upper stage. Three and a half hours after lift-off, the satellite separated from the upper stage and ground control established communications with it. The... read more

This article is tagged with , , , and posted in GNSS, Latest News

Air Force successfully launches GPS IIF-12 satellite

February 8, 2016By
A United Launch Alliance (ULA) Atlas V rocket carrying the GPS IIF-12 mission lifted off from Space Launch Complex 41 at Cape Canaveral. (Photo: ULA)

The U.S. Air Force successfully launched the 12th Boeing-built GPS IIF satellite aboard a United Launch Alliance Atlas V Evolved Expendable Launch Vehicle from Space Launch Complex 41, Cape Canaveral Air Force Station, Fla., at 8:38 a.m. EST (5:38 a.m. PST) on Feb. 5. “Today’s launch is a significant achievement in the history of GPS, as we launch the last of... read more

GPS III navigation payload to be all digital

February 2, 2016By

Harris Corporation will offer an all-digital navigation payload for GPS III Space Vehicles (SV) 11 and beyond. According to Harris, the fully digital navigation payload will provide enhanced performance and enable on-orbit reprogramming. The all-digital payload expands on the advanced features of the current 70-percent digital payload that Harris provides for Lockheed Martin’s GPS III SV 1-8 satellites. The features provide greater... read more

Galileo 9 and 10 now broadcasting navigation messages

February 2, 2016By

Europe’s ninth and tenth Galileo satellites have started broadcasting working navigation messages. The two satellites were launched together on Sept. 11, 2015. read more

This article is tagged with , , , , , and posted in Featured Stories, GNSS, Latest News

Launch of last GPS IIF satellite shifts to Friday

February 2, 2016By

The U.S. Air Force plans to launch the 12th — and final — satellite in the Block IIF series of modernized GPS spacecraft this week. Originally scheduled to launch Feb. 3, the launch has been moved to Friday, Feb. 5. According to United Launch Alliance (ULA), the cause for the schedule slip was “concerns over the integrity of electrical connectors on the Atlas V... read more

Air Force determines cause of GPS timing issue

February 2, 2016By

On Jan. 26 at 12:49 a.m. MST, the 2nd Space Operations Squadron (2 SOPS) at the 50th Space Wing, Schriever Air Force Base, Colo., verified users were experiencing GPS timing issues. Further investigation revealed an issue in the GPS ground software that only affected the time on legacy L-band signals. This change occurred when the oldest vehicle, SVN 23, was... read more

This article is tagged with , , , and posted in GNSS, Latest News