GNSS News

Galileo Spreads Its Wings in Pre-Flight Test

July 11, 2013By
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In the photo above, deployment of the solar wings on the latest Galileo satellite is being checked at the European Space Agency’s technical hub in the Netherlands. The navigation satellite’s pair of 1 x 5-meter solar wings, carrying more than 2,500 gallium arsenide solar cells, will power the satellite during its 12-year working life. With the first four Galileo In-Orbit... read more

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IRNSS-1A Reaches Preliminary Destination Orbit

July 11, 2013By

News courtesy of CANSPACE listserv. Following the July 1 launch of the Indian Regional Navigation Satellite System 1A satellite, five orbit maneuvers were to be conducted by the master control facility to position the satellite in its circular inclined geosynchronous orbit (IGSO) with an equator crossing at 55 degrees east longitude. Reports indicate that orbit raising maneuvers have been completed with... read more

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Lockheed Martin GPS III Prototype Validates Test Facilities

July 10, 2013By
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Lockheed Martin’s GPS III Non-Flight Satellite Testbed (GNST) has successfully completed a series of high-fidelity pathfinding events which validate the process and facility for vehicle integration checkout, as well as signals interference testing, that the next-generation satellites of GPS III will go through before delivery for launch. An innovative investment by U.S. Air Force under the original GPS III development... read more

2C or Not 2C: The First Live Broadcast of GPS CNAV Messages

July 8, 2013By

By Oliver Montenbruck, Richard B. Langley, and Peter Steigenberger Over the past several years, some users of the GPS navigation system have already benefitted from the addition of various new signals in addition to the legacy C/A- and P(Y)-code. With the introduction of the Block IIR-M satellites in 2005, a new civil signal (L2C) was transmitted on the L2 frequency,... read more

Experts Meet to Standardize Satellite Augmentation Systems

July 3, 2013By
The GPS global satellite navigation system has an accuracy of 5–10 m. Across our continent that accuracy is greatly sharpened to 1-2 m through the European Geostationary Navigation Overlay Service (EGNOS), an operational precursor to Europe’s coming Galileo global satnav system. EGNOS broadcasts augmented information through a trio of geostationary satellites linked to a network of monitoring ground stations.

More than 30 specialists overseeing the world’s five satellite navigation augmentation systems gathered in Russia last week, planning for a high-performance future with many more navigation satellites in orbit, reports the European Space Agency. The Satellite-Based Augmentation Systems (SBAS) Interoperability Working Group was hosted June 25–27 in St. Petersburg by Russia’s Roscosmos space agency and the Russian Academy of Sciences.... read more

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Russian Rocket Crashes, Three GLONASS Satellites Lost

July 2, 2013By
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A Russian Proton-M rocket carrying three GLONASS navigation satellites crashed soon after liftoff today from Kazakhstan’s Baikonur cosmodrome, reports rt.com (Russia Today). About 10 seconds after takeoff at 02:38 UTC, the rocket swerved, began to correct, but then veered in the opposite direction. It then flew horizontally and started to come apart with its engines in full thrust. Making an... read more

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Three GLONASS Satellites to Be Launched July 2

July 1, 2013By
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News courtesy of CANSPACE Listserv GLONASS  satellites 48, 49, and 50 are expected to launch at 02:38 UTC on July 2. Live launch coverage will be provided by TsENKI, the Center (for Operation) of Ground-based Space Infrastructure, starting at 01:00 UTC. Also, launch updates are available here. Read more about the launch here. Here is a video of launch vehicle... read more

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India’s First Navigation Satellite to Lift Off Today

June 28, 2013By
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News courtesy of CANSPACE Listserv. Launch of the first satellite for the Indian Regional Navigation Satellite System (IRNSS) is scheduled for 18:13 UTC on July 1. Launch rehearsal has been completed successfully. The 64-hour countdown is expected to start at 7:11 (IST) tomorrow, June 29, and the launch will take place from the spaceport of Sriharikota. The 1,425 kg satellite... read more

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