TAG: ESA

The System: ESA’s Second FOC Moves Up

February 1, 2015By
The fifth Galileo satellite is now pointing toward Earth.

By Tim Reynolds, GPS World European correspondent Director General Jean-Jacques Dordain of the European Space Agency (ESA) announced Jan. 16 that the second errant full-operational capability (FOC) satellite, launched in August, had started its orbital change maneuver the previous day. He anticipated that the orbital change would be completed and the final orbit — “albeit somewhat lower in height than the one... read more

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2, 4, 6, 8 — Who Do We Appreciate?

January 29, 2015By

Galileo, that’s who! For dogged determination and persistent pushing-forwardness in the face of adversity, obstacles, and the occasional technical difficulty. That there may be occasional confusion, as well, or mixed messages as to just what the future may bring, is certainly understandable. In fact, it is to be expected, given the circumstances. Let’s review the math. Two Two for the... read more

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Six Galileo Satellites Planned for 2015 Launch

January 20, 2015By

Six Galileo satellites are scheduled to be launched this year, European Space Agency (ESA) Director General Jean-Jacques Dordain said on January 16. “The launch of six satellites is scheduled for 2015. The [European] Commission will determine the terms of the launches at the end of January,” Dordain said at a press briefing. The satellites will be put into orbit by Ariane... read more

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Galileo Service Interruption Planned for System Upgrade

January 19, 2015By
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Galileo’s navigation messages will shortly stop being updated to enable the migration of a new release for Galileo’s ground mission segment, announced the European Space Agency. Although the actual navigation signals will continue to be transmitted, the generation and uplink of the navigation message — which renews the contents of the signal — will be interrupted during the last week of January... read more

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ESA International Summer School Set for July

April 29, 2014By

The ESA Summer School is scheduled for July 21-31, at the Campus of the Technical University of Ostrava, Czech Republic. The school provides attendees with a comprehensive overview of satellite navigation, starting from the various GNSS, the signals, the processing of the observations in a receiver, and finally determining the position-navigation-time (PNT) solution. Lab work will be carried out to... read more

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ESA Helps Prepare Satnav Mass Market for Galileo Services

February 18, 2014By
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With the first Galileo services set to begin this year, the European Space Agency (ESA) is working directly with European manufacturers of mass-market satnav chips and receivers to ensure that their products are Galileo-ready. “Our objective is to make sure, ahead of the European Union’s declaration of early Galileo services that mass-market devices are ready and able to make use... read more

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The System: Autumn Falls Back

November 1, 2013By
Delta IV, the current GPS launch vehicle, awaits a date with space at Cape Canaveral.

Launch Delays Ground GPS IIF and Galileo FOC The scheduled October 23 launch of GPS IIF-5, the fifth in the current “follow-on” generation of GPS satellites, has been postponed in order to complete a review of an adjustment made to the rocket’s upper stage engine. A loss of thrust by a Delta IV rocket upper stage during a GPS launch last... read more

ESA’s Next Galileo Satellite Passes Trial by Noise

August 14, 2013By
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Courtesy of the European Space Agency There might seem to be a hole in the side of this Galileo satellite — in fact its folded solar wings are simply reflecting a noise horn in the wall, about to recreate the deafening roar of a rocket lifting off. Anyone witnessing a rocket launch will be struck by the noise levels, even... read more

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