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    1. Surveying Earth’s oceans: Jason-1 and Jason-2 join forces

      Publishing date:

      February 24, 2009

      After a 6-month cross-calibration phase, Jason-2 has been moved into the orbit of its predecessor Jason-1. The 2 ocean-observing satellites will now fly in tandem on parallel ground tracks until Jason-1 reaches the end of its mission life, thereby doubling ocean data coverage.

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    4. Jason-2 transferred to a lower orbit

      Publishing date:

      July 13, 2017

      Orbit transfer operations were carried out by CNES Toulouse Space Centre teams and took place between 3 and 9 July 2017. Jason-2 now operates on a 1,309 km high orbit.

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    5. Jason-2 a rejoint sa nouvelle orbite

      Publishing date:

      July 12, 2017

      Les opérations de changement d’orbite se sont déroulées entre le 3 et le 9 juillet. Préparées par les équipes du Centre Spatial de Toulouse, elles ont permis à Jason-2 de rejoindre sa nouvelle orbite à 1.309 km d’altitude.

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    6. Nouvelle mission d’altimétrie pour le satellite franco-américain Jason-2

      Publishing date:

      June 30, 2017

      Le satellite océanographique Jason-2 conçu par le CNES et la NASA en partenariat avec EUMETSAT (the European Organisation for the Exploitation of Meteorological Satellites) et la NOAA (the National Oceanic and Atmospheric Administration) a contribué, durant neuf années, à améliorer nos connaissances liées à la hausse globale du niveau de la mer, aux courants océaniques et aux phénomènes climatiques exceptionnels tels qu’El Nino et La Nina. Dès le mois prochain, il assurera une nouvelle mission : l'amélioration de la cartographie des fonds marins.

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    7. French-U.S. Jason-2 satellite takes on new altimetry mission

      Publishing date:

      June 30, 2017

      Over the past nine years, the Jason-2 ocean-observing satellite conceived by CNES and NASA in partnership with Eumetsat (European Organisation for the Exploitation of Meteorological Satellites) and NOAA (National Oceanic and Atmospheric Administration) has expanded our knowledge of global sea level change, ocean currents and climate phenomena like El Niño and La Niña. From next month, it will be taking on an additional role: improving maps of Earth’s sea floor.

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    8. A ground station for Jason-2

      Publishing date:

      September 26, 2006

      The Jason-2 altimetry satellite will take over from Jason-1 in 2008, extending the continuous series of ocean measurements acquired starting in 1992 with Topex/Poseidon. Ground stations for Jason-2 are already being deployed. One of them, at Usingen, Germany, entered service on 28 September.

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    9. Jason-2 delivers its first global maps

      Publishing date:

      August 7, 2008

      The first global ocean maps delivered by Jason-2 compare very closely to those obtained by its predecessor Jason-1. A real bonus for the teams calibrating the satellite’s instruments.

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    10. Jason-2 fournit ses premières cartes

      Publishing date:

      August 7, 2008

      Jason-2 vient de livrer ses premières cartes complètes des océans. Elles sont très proches de celles obtenues par son prédécesseur, Jason-1. Une aubaine pour la calibration des instruments du satellite.

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    11. Jason-2 all set to take satellite altimetry into higher gear

      Publishing date:

      October 29, 2008

      After 4 months of in-orbit commissioning, Jason-2 has entered the operational phase of its mission. The new ocean-observing satellite offers many improvements compared to its predecessor Jason-1.

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    12. Un terminal terrestre pour Jason-2

      Publishing date:

      September 26, 2006

      Le satellite altimétrique Jason-2 prendra en 2008 le relais de Jason-1. Il doit fournir des mesures de l’océan dans la continuité de celles effectuées depuis 1992 par Topex-Poséidon. D’ores et déjà, les terminaux terrestres utilisés pour Jason-2 sont en place. L’un d’entre eux, le terminal d’Usingen (Allemagne) est inauguré ce 28 septembre.

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    13. Jason-2 takes to the air

      Publishing date:

      May 7, 2008

      Since 1992, altimetry satellites have significantly enhanced our knowledge of the world’s oceans. The Jason-2 satellite is all set to take over the ocean-observing mission of its predecessors Jason-1 and Topex/Poseidon. It recently arrived at Vandenberg Air Force Base, California, in preparation for launch on 15 June.

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    14. CNES and Eumetsat sign Jason-2 agreement

      Publishing date:

      May 24, 2006

      Last month, Europe (CNES and Eumetsat) and the United States (Nasa and NOAA) signed a cooperation agreement on the Jason-2 programme. The European partners have now signed a new agreement on this ocean surface topography mission.

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    15. Jason-2 all set for the off

      Publishing date:

      June 18, 2008

      The Jason-2 oceanography satellite is now in the home straight and set for launch Friday 20 June. Before reaching final orbit, the satellite will go through a sequence of steps just after launch and during the beginning-of-life phase of its mission. Jason-2 teams are watching launch preparations advance in California with much relief after a series of setbacks over the last 2 weeks. First, successive delays in the launch of the GLAST satellite pushed back the departure of Jason-2, since the same ground teams were preparing both satellites; and then poor weather prevented the satellite from being mated with the launcher as planned.

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    16. Toulouse takes the pulse of Jason-2

      Publishing date:

      August 6, 2008

      During the night of 3-4 July, the Jason-2 oceanography satellite reached its final operational orbit at an altitude of 1,336 km. Positioning operations were conducted from the J2CCC control centre in Toulouse, which has now completed the 1st part of its mission. We take a look behind the scenes with the teams monitoring Jason-2’s health.

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    17. Toulouse prend le pouls de Jason-2

      Publishing date:

      July 31, 2008

      Le satellite d’océanographie a atteint, dans la nuit du 3 au 4 juillet, son orbite définitive à 1336 km d’altitude. Aux commandes, le centre de contrôle J2CCC à Toulouse a achevé la 1ère partie de sa mission. Coup de projecteur sur le lieu où l’état de santé de Jason-2 fait l’objet de toutes les attentions.

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    18. Jason-2 delivers its first global maps

      Publishing date:

      March 11, 2010

      The european-US Jason-3 oceanography satellite is scheduled to launch in 2013 to replace Jason-1. Its objective is to continue monitoring sea-surface height and pursue the 21-year time series of high-accuracy ocean altimetry measurements.

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    19. T2L2 hitches a ride on Jason-2

      Publishing date:

      July 15, 2008

      Three passenger instruments on Jason-2, the ocean surface topography satellite launched 20 June, won’t be measuring sea-surface height. One of them is the Time Transfer by Laser Link instrument (T2L2). Its job is to synchronize clocks.

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    20. Jason-2 en orbite

      Publishing date:

      June 20, 2008

      Le satellite d’océanographie s’est envolé ce vendredi depuis la base américaine de Vandenberg en Californie. Une première pour le CNES : la phase de séparation avec le lanceur a été suivie par une caméra embarquée.

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