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Events • May 20, 2010

ESA Sponsors GNSS Summer School this September in Denmark

Online registration is open for the fourth International Summer School on Global Navigation Satellite systems. The 10-day course will take place at the GPS Center at Aalborg University in Slettestrand, Denmark from Wednesday afternoon, September 1 through Saturday morning, September 11.

Held for the first two years at University FAF Munich, it now takes place in Denmark with two new lead sponsors, the European Space Agency and Nokia.

September 1, 2010 - September 11, 2010
Slettestrand, Denmark
Inside GNSS • June 2010

CAPS — China’s Regional Navigation Satellite System

Many navigation satellite systems have emerged since 2000.

GPS is the first global navigation satellite system (GNSS), followed by Russia’s GLONASS, reinvigorated in recent years. Europe is developing Galileo, and China is expanding the regional system Beidou to a global system called Compass (also referred to as Beidou-2).

April 16, 2010

GAGAN Delayed Again

India’s first GPS/SBAS payload, the GAGAN (GPS-Aided Geo-Augmented Navigation system) transmitter on the GSAT-4 geostationary satellite, disappeared into the Bay of Bengal on April 15 when its ill-fated GSLV-D3 launch vehicle veered off course.

The Indian Space Research Organization's GSAT-4 satellite carried a communication payload of multi-beam Ka-band pipe and regenerative transponder and a navigation payload in C, L1 and L5 bands.

A key part of India’s GPS augmentation plan, the failure will further delay civil aviation modernization.

October 20, 2010 - October 22, 2010
Milan, Italy
April 10, 2010

FAA Predicts Erosion of GPS WAAS Service Due to Intelsat GEO Failure

[updated April 13] Federal Aviation Administration (FAA) officials say that loss of control over an Intelsat geostationary (GEO) carrying a GPS Wide Area Augmentation System (WAAS) transponder could subject users in the National Air Space (NAS) to temporary outages for the rest of this year, beginning within the next two to four weeks as the GEO drifts out of a useable orbit.

Intelsat S.A. announced the anomaly in Galaxy 15 (G-15) on April 8. Although the communications services provided by G-15, located at 133 degrees west longitude (WL), have not been affected, according to Intelsat, the satellite apparently is not responding to commands by controllers. The anomalous condition began on April 3, according to the FAA.

The Luxembourg-based Intelsat is moving an older spacecraft (G-12) that serves as a backup for G-15 from its location at 123 degrees WL. However, G-12 does not have an L-band transponder, which is needed for WAAS transmissions.

April 9, 2010

Canada to Decommission DGPS System

The Canada-wide DGPS Service (CDGPS), a free GNSS augmentation system initiated by the Canadian Council on Geomatics (CCOG) in 2003, will be decommissioned by March 31, 2011, according to Gary Sawayama, the system’s general manager.

The CDGPS L-band broadcast has been carried by SkyTerra Communications Inc.’s MSAT communications satellites, which are expected to be replaced this year by the next-generation SkyTerra satellites. Significant new investment in infrastructural changes would be required to migrate to a new communication satellite.

September 15, 2010 - September 17, 2010
Zurich, Switzerland
September 23, 2010 - September 25, 2010
Gdynia, Poland
March 29, 2010

European GNSS Supervisory Authority Launches EGNOS Portal

The European GNSS Supervisory Authority (GSA), on behalf of the European Commission, has launched an Internet portal for the European Geostationary Navigation Overlay Service (EGNOS) designed to help developers and entrepreneurs vying for a slice of the emerging satellite navigation market.

The European counterpart to the U.S. GPS Wide Area Augmentation System (WAAS), EGNOS is a satellite-based augmentation system that provides real-time differential corrections and integrity information about GPS operations.

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