Galileo Satellites Enclosed for Friday’s Launch

March 25, 2015By

Thousands of engineers have worked on the seventh and eighth navigation satellites of Europe’s Galileo constellation in recent years, but last Friday marked the very last time the spacecraft were glimpsed by human eyes. read more

Javad Ashjaee Urges Diplomacy, Cooperation to End Crimean Stand-Off

March 25, 2015By

By Javad Ashjaee 25 years ago, while the Soviet Union still existed, I began efforts that led me to become the first to combine United States’ GPS and Russia’s GLONASS satellites. Later I hosted many GPS and GLONASS authorities, fostered friendships among them, and promoted concepts such as “compatibility” and “interoperability” of satellite systems. See the details in the GPS... read more

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Soyuz in the Launch Zone for March 27 Galileo Launch

March 24, 2015By

The Soyuz for Arianespace’s next medium-lift mission is in the launch zone at French Guiana, where it stands ready to receive the two spacecraft passengers that will join Europe’s Galileo global navigation satellite system. Applying procedures that have been followed since the workhorse Soyuz launcher inaugurated the Space Age, the basic three-stage vehicle for Arianespace’s March 27 flight emerged today from its MIK integration building in... read more

Launch of IRNSS-1D Now Set for Saturday

March 23, 2015By

The launch of India’s fourth Navigation Satellite, IRNSS-1D, is now scheduled for 17:19 IST (11:49 UTC) on Saturday, March 28, from Satish Dhawan Space Centre, Sriharikota. The launch was previously scheduled for March 9, then postponed until March 29 to replace a faulty telemetry transmitter on the satellite, according to the Indian Space Research Organization. IRNSS-1D will be fourth in the seven-spacecraft Indian Regional... read more

GPS IIF-9 Launches Wednesday

March 23, 2015By

The U.S. Air Force’s ninth GPS Block IIF satellite (GPS IIF-9) is set to launch Wednesday at 2:36 p.m. EDT (1836 GMT)  from Space Launch Complex 37 at Cape Canaveral Air Force Station, Fla. The GPS IIF-9 will ride aboard a United Launch Alliance (ULA) Delta IV rocket, marking the 29th Delta IV launch and the 57th operational GPS satellite to launch on... read more

Air Force Working on Glitch for GPS IIF Satellites

March 23, 2015By

The U.S. Air Force is working to resolve a technical error that affected some Boeing GPS satellites, according to a report by Reuters. The error does not affect the accuracy of GPS signals. It involves the ground-based software used to index some messages transmitted by GPS IIF satellites built by Boeing, Air Force Space Command said according to Reuters. Still, officials are investigating other possible causes.... read more

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BeiDou Launch May Take Place This Month

March 19, 2015By

News courtesy of the CANSPACE Listserv.   The first satellite in the BeiDou Phase 3 expansion could be launched by the end of March. Apparently, a BeiDou satellite has been shipped to the Xichang launch site, and tracking ships have left port for the open ocean. Also, a philatelic first-day cover for the launch (a common Chinese practice) has been issued with... read more

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CNAV Performance ‘Matches or Slightly Outperforms’ Legacy Signals

March 19, 2015By

A quarterly meeting of the U.S. GPS Program’s interagency Civil Navigation Signals (CNAV) Tiger Team on March 5 focused on the new L2C and L5 GPS civil signals. “CNAV Message Types 10, 11, 30 and 33 are currently transmitted on seven GPS IIR-M (L2C) and eight GPS IIF satellites (L2C and L5),” wrote Rick Hamilton, CGSIC Executive Secretariat, USCG Navigation Center, in a status email to the Civil Global Positioning System Service... read more

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