With the initial satellites of the Galileo constellation working well in orbit, it has been decided to end the mission of ESA’s pioneering GIOVE-A navigation satellite, reports the European Space Agency. Launched on December 28, 2005, this first experimental satellite performed the vital task of securing the radio frequencies provisionally set aside for Galileo by the International Telecommunications Union. read more
Roscosmos has done some juggling of launch dates for some upcoming satellite launches from the Baikonur Cosmodrome and the launch of SES-5 is now scheduled for Saturday, July 7. The launch of SES-5 from the Baikonur Cosmodrome, originally scheduled for June 18, was delayed due to a problem with a first stage subsystem on the Proton launch vehicle. read more
According to tracking information supplied by NORAD/JSpOC, spacecraft controllers have adjusted the orbit of the Russian SBAS satellite, Luch-5A. The satellite has been repositioned so that its sub-satellite longitude is 95 degrees east. read more
Two British technologists backed by the U.K. Ministry of Defense have filed patents on the future interoperable GPS and Galileo signal designs that severely disrupt modernization plans for both systems and suddenly, unexpectedly place receiver manufacturers in a highly uncertain and unfavorable situation. Some of the patents have been granted in the U.K. and in Europe, and applications are pending... read more
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A new method brings together advantages of real-time kinematic (RTK) and precise point positioning (PPP) in a technique that does not require local reference stations, while still providing the the high productivity and accuracy of RTK systems with the extended coverage area of solutions based on global satellite corrections. The real-time centimeter-level accuracy without reference-station infrastructure is suitable for many market segments — and is applicable to multi-GNSS constellations. read more
Maybe we should take it as validation, an acknowledgment of the worth, maturity, and promise of the GNSS industry, that profiteers show up trying to make a fast buck. A prompt pound, a quick quid. Or perhaps we should be angry at this violation of international trust, this grasping effort to monetize the free and open exchange of scientific ideas, this contravention of the very spirit and tradition of global navigation satellite systems and signals. read more
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