Broad Reach Engineering GPS Receiver Launched On TerraSAR-X Mission

by Staff Writers
Tempe AZ (SPX) Nov 02, 2007
Broad Reach Engineering announces the successful launch and full functional check out of the IGOR GPS receiver onboard the German TerraSAR-X mission. Launched on a Dnepr rocket from the Baikonur Cosmodrome in Kazakhstan, the TerraSAR-X spacecraft was successfully deployed in its mission orbit of 514 km at 98 deg inclination.

The IGOR GPS receiver was declared operational on 6/30/2007. The GPS receiver is used on TerraSAR-X to provide high accuracy position and velocity information for image collocation. In addition, the unit is used as a radio occultation sensor, which provides approximately 500 daily measurements of atmospheric property profiles, ranging from the surface to the upper Ionosphere.

The IGOR GPS receiver is a dual frequency, dual redundant, 48 channel space qualified GPS receiver for precision orbit determination and radio occultation science. Based on the JPL BlackJack design, the receiver provides real-time position solutions with accuracies of 3 meters or better. Laser ranging validations by DLR show post processed orbit positioning to be from 2 to 5 centimeters.

The TerraSAR-X receiver joins 7 other similar IGOR GPS receivers currently on orbit, one each on the 6 COSMIC (April of 2006) spacecraft and one on TacSat-2 (launched in December 2006) for a current running total of over 10 years of on-orbit success. Two additional receivers will be launched in the near future on the German Tandem-X mission and the Korean KOMPSAT-5 satellite.

GPS NEWS

Russia Launches Proton Carrier Rocket After The Ban

Moscow (RIA Novosti) Oct 29, 2007
Russia has successfully conducted a delayed launch of a Proton carrier rocket from the Baikonur space center in Kazakhstan, the Federal Space Agency (Roskosmos) said Friday. The Proton K rocket, which has been on the launch pad since Monday, lifted off at 11.35 a.m. Moscow time (7.35 a.m. GMT) and put in orbit three Glonass global navigation satellites, the space agency said.

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