GNSS

Lockheed Martin Delivers Antenna Assemblies for First GPS III Satellite

July 15, 2013By
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Lockheed Martin has completed and is preparing to install the navigation, communication, and hosted payload antenna assemblies for the first satellite of the next-generation GPS III. Seven antenna assemblies, produced at Lockheed Martin’s Newtown, Pennsylania, facility were delivered to the company’s GPS III Processing Facility (GPF) near Denver, Colorado, on June 14.  The antennas will be installed on the first... read more

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

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

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

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

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

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

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

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

Innovation: Getting a Grip on Multi-GNSS

July 1, 2013By
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The International GNSS Service MGEX Campaign
GPS is almost 40 years old. While mass consumer use of GPS began only within the past decade or so, GPS was "born" during the Labor Day weekend of 1973, when about a dozen military officers and industry analysts under the leadership of Brad Parkinson met to consolidate the concept for a single satellite-based navigation system for the U.S. Department of Defense. Their proposal for NAVSTAR GPS was approved on December 22, 1973. The first satellite to be launched under the GPS program, on July 14, 1974, was the Naval Research Laboratory’s Navigation Technology Satellite (NTS) 1. read more

This article is tagged with and posted in BeiDou/Compass, From the Magazine, Galileo, GLONASS, GPS Modernization, Innovation