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  1. DORIS, 30 years of continuous operations at the heart of the of altimetry mission performance for oceanography and geodetic applications

    Publishing date:

    February 27, 2020

    The DORIS system (Doppler Orbitography and Radio positioning Integrated by Satellite) was designed and developed in the early 1980s by CNES, IGN and GRGS to determine satellite positions with high accuracy to support altimetry missions dedicated to ocean monitoring.

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  2. Organisation

    Publishing date:

    February 9, 2016

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  3. T2L2 dans les bagages de Jason

    Publishing date:

    June 26, 2008

    Jason-2, le satellite d’altimétrie lancé le 20 juin, a emporté dans ses bagages 3 instruments qui n’ont rien à voir (ou presque) avec la mesure de la hauteur des océans. Parmi eux, T2L2 (Transfert de Temps par Lien Laser). Son rôle : la synchronisation d’horloges.

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  4. Other Sites

    Publishing date:

    October 27, 2014

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  5. Autres Sites

    Publishing date:

    October 27, 2014

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  6. Mission

    Publishing date:

    February 7, 2017

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  7. Système

    Publishing date:

    October 27, 2014

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  8. Contacts

    Publishing date:

    September 20, 2016

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  9. Contacts

    Publishing date:

    April 26, 2019

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  10. Applications

    Publishing date:

    October 27, 2014

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  11. Organization

    Publishing date:

    February 7, 2017

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  12. 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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