TAG: European Space Agency

Time to Hit Warp Speed, Galileo

April 23, 2013By

Report from ENC: Constellation Needs 22 Satellites in Three Years Launch, deploy, and operate “22 satellites in less than 3 years.” That’s two satellites every three months, leading to a four-at-once launch in 2014. And that’s the challenge that Europe and the European Space Agency (ESA) now face. This pointed call to action during the opening plenary of the European... read more

Four Galileo Birds Sighted over Asia

April 2, 2013By
Figure 1. Positions obtained by only Galileo E1 Open Service (the antenna is located at the roof of the Ta Quang Buu library building inside HUST campus)

Scientists in Hanoi, Vietnam, send word that on March 27 the four Galileo in-orbit validation satellites were visible at the same time in the sky over that Southeast Asian country for nearly two hours (from 2:15 to 4:00 GMT) while transmitting a valid navigation message. The research team of the NAVIS Centre at Hanoi University of Science and Technology (HUST)... read more

The System: Galileo Autonomous Fix, Indoor Nav Standards

April 1, 2013By
System-Galileo-O

Galileo Logs First Autonomous Fix; Galileo over Canada (By James T. Curran, Mark Petovello, and Gérard Lachapelle); and Indoor Nav: Early Steps towards FCC Standards Galileo Logs First Autonomous Fix Entitling its release “From Orbit with Love,” the European Space Agency (ESA) announced March 12 that the four current satellites of the Galileo constellation achieved their first autonomous position fix.... read more

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ESA Summer School Will Navigate Students through Satnav World

March 28, 2013By
ESA Summer School 2013

ESA International Summer School on GNSS 2013 will take place this year in Davos, Switzerland, July 15-25, 2013, at the Schatzalp Snow & Mountain Resort. Satellite navigation technology is changing all our lives — and here is your chance to gain an expert overview. This summer’s Navigation Summer School, hosted by the Swiss Space Office and the Swiss Space Center... read more

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PLAN Group Tracks Galileo Satellites for Positioning in Canada

March 15, 2013By

by James T. Curran, Mark Petovello, and Gérard Lachapelle Within a day of their initial activation over central Europe on March 12, Galileo satellites were visible over North America. The PLAN Group of the University of Calgary was successful in capturing and processing the signals from these satellites as they emerged. Galileo PRN 11, 12, and 19 were found and... read more

Galileo’s Search and Rescue System Passes First Space Test

January 23, 2013By
First_Galileo_search_and_rescue_signal_node_full_image

The first switch-on of a Galileo search and rescue package shows it to be working well, according to the European Space Agency. Its activation begins a major expansion of the space-based Cospas–Sarsat network, which brings help to air and sea vessels in distress. The second pair of Europe’s Galileo navigation satellites — launched together on October 12 last year —... read more

Retired GIOVE-A Helps SSTL Demo High-Altitude GPS Fix

November 30, 2012By
Galileo's GIOVE-A retired in June 2012

An experimental GPS receiver, built by Surrey Satellite Technology Limited (SSTL), has successfully achieved a GPS position fix at 23,300 kilometers altitude – the first position fix above the GPS constellation on a civilian satellite. The SGR-GEO receiver is collecting data that could help SSTL to develop a receiver to navigate spacecraft in geostationary orbit (GEO) or even in deep... read more

Mission Accomplished for Galileo’s Pathfinder GIOVE-A

July 3, 2012By

Artist’s impression of GIOVE-A in orbit. (Photo by ESA – P. Carril) With the initial satellites of the Galileo constellation working well in orbit, it has been decided to end the mission of ESA’s pioneering GIOVE-A navigation satellite, reports the European Space Agency. Launched on December 28, 2005, this first experimental satellite performed the vital task of securing the radio... read more

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