The beginnings of satellite telecommunications [Send to a friend] [Print] The first telecommunications satellites were passive satellites, designed simply to reflect signals from one ground station to another. These were superseded by active satellites, which receive radio signals, amplify them ...Read more
[Send to a friend] [Print] Giove blazes the trail for Galileo 22 December 2005 [Satellite Giove-A. Credits : ESA] [/img/2008/imageZoom.gif] Satellite Giove-A. Credits : ESA Go, go Galileo! The Giove-A satellite has arrived in Baikonur ready for launch 28 December onboard Soyouz-Fregat. Giove-A ...Read more
[Send to a friend] [Print] 4 Galileo satellites in orbit 19 October 2012 The 3rd and 4th satellites of the Galileo global satellite navigation system were launched one week ago from the Guiana Space Centre. They have now joined their predecessors, already in orbit for a year, to complete the ...Read more
[Envoyer à un ami] [Imprimer] SPOT: 25 years in service, 25 million images 1st april 2011 The SPOT satellites, conceived and designed by CNES engineers, are celebrating 25 years in service. During their career, three generations of satellites have brought users an ever-more-precise and compl ...Read more
[Envoyer à un ami] [Imprimer] 20 years in orbit for the Proteus satellite bus 7 October 2010 The bus is a key element of a satellite, supplying power and enabling the spacecraft to be controlled from the ground. CNES has specialized in designing satellite buses since the 1990s. This year, it ...Read more
The tsunami seen by satellites [Send to a friend] [Print] Every day, hundreds of satellites pass over our heads. But, because they are subjected to Earth's gravity, it is not so easy to adjust their very precise trajectories. [Artist's views of the Jason-1 and Topex/Poseidon (in background) sat ...Read more
[Envoyer à un ami] [Imprimer] First two Galileo satellites set for launch on 20 October 4 October 2011 The first two satellites of Europe's future navigation system are awaiting launch in French Guiana. Galileo will provide better coverage and positioning accuracy than the U.S. Global Position ...Read more
[Send to a friend] [Print] Galileo Europe's satellite navigation system The chief aim of EGNOS and Galileo, Europe's global navigation satellite systems (GNSS), is to give the European Union its own satellite-based positioning and timing capability and thus guarantee its independence from exi ...Read more
How telecommunications satellites work [Send to a friend] [Print] Telecommunications satellites rely on the properties of propagating electromagnetic waves to convey information, which is transmitted using carrier waves in clearly defined frequency bands. A satellite may be a passive element of ...Read more
Satellite structure and operation [Send to a friend] [Print] Satellites are built for a broad variety of missions, so each one is different. However, just as any motor-driven vehicle has a chassis, an engine, fuel tanks and steering systems, all satellites share the same basic structure and org ...Read more
CNES and RATP put on My City by Satellite exhibition at Luxembourg station for passengers on RER B line
CNES and RATP put on My City by Satellite exhibition at Luxembourg station for passengers on RER B line Until January 2014, CNES and RATP, the Paris public transport operator, are putting on an exhibition called My City by Satellite for RER B passengers on the platforms of Luxembourg station. Th ...Read more
[Send to a friend] [Print] Syracuse is in orbit 14 October 2005 [Décollage d'Ariane 5 GS le 13 octobre 2005. Crédits : ESA/CNES/Arianespace] [/ img/2008/imageZoom.gif] Décollage d'Ariane 5 GS le 13 octobre 2005. Crédits : ESA/CNES/Arianespace Ariane scores dual mission success : the launcher p ...Read more
[Envoyer à un ami] [Imprimer] Very-high-speed satellite broadband on the market in 5 years 13 May 2011 With satellite broadband Internet access set to be available in France in a few weeks' time, the government recently announced funding for CNES to initiate a research and development program ...Read more
[cnes-presse] Paris, 13 april 2005 CNES PRESS RELEASE PR 23/2005 CNES POSITIONS APSTAR VI SATELLITE Teams at the Toulouse Space Centre have commenced operations to position the Apstar VI telecommunicati ...Read more
PR59-2003 - COSPAS-SARSAT French mission control cnetre now relaying alerts from MSG-1 European weather satellite
PRESS RELEASE [Send to a friend] [Print] CNES PRESS RELEASE September 16, 2003 COSPAS-SARSAT FRENCH MISSION CONTROL CENTRE (FMCC) NOW RELAYING ALERTS FROM MSG-1 EUROPEAN WEATHER SATELLITE The MSG-1 European we ...Read more
[Send to a friend] [Print] First Pléiades satellite to launch 16 December 9 December 2011 The first of the 2 Pléiades satellites is set to be orbited on 16 December by a Soyuz launcher from the Guiana Space Centre, ushering in a new generation of Earth imagery to add to the existing panoply. ...Read more
Succès du lancement des satellites PLEIADES, ELISA et SSOT par Soyouz depuis le Centre Spatial Guyanais
Succès du lancement des satellites PLEIADES, ELISA et SSOT par Soyouz depuis le Centre Spatial Guyanais Le 17 décembre 2011, à 03h03 (heure de Paris), le lanceur Soyouz a réussi son deuxième lancement depuis Sinnamary, au Centre Spatial Guyanais, mettant en orbite le ...Read more
[Send to a friend] [Print] Jason-2 takes to the air 7 may 2008 [The Jason-2 satellite. Crédits : CNES, juin 2005/Illust. D. Ducros] [/img/ 2008/imageZoom.gif] The Jason-2 satellite. Crédits : CNES, juin 2005/Illust. D. Ducro ...Read more
[Envoyer à un ami] [Imprimer] CNES keeps a lookout for collisions in space 17 February 2009 Last week's collision between the Kosmos and Iridium satellites was an exceptionally rare event. But with the growing field of orbital debris now encircling the planet, the ability to predict and avert ...Read more
[cnes-presse] Paris, 18 january 2005 PR 04/2005 NASA AND CNES JOINT PRESS RELEASE NASA/FRENCH SATELLITE DATA REVEAL NEW DETAILS OF TSUNAMI For the first time, orbiting satellites have observed and measured a major ts ...Read more
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