CNES program status CNES program status E. Thouvenot, CNES March 2007.

CNES program statusCNES program status

E. Thouvenot, CNES

March 2007

CNES program status – OST-ST meeting - Hobart - March, 2007 2

CNES Strategy in OceanographyCNES Strategy in Oceanography

• Contribute to operational outcome of altimetry : TOPEX/POSEIDON => JASON1 => JASON2/OSTM =>JASON3 ERS 1 & 2 => ENVISAT => SENTINEL3 + CORIOLIS, MERCATOR/COO/ECOMF, ...

• Continue research activities for future altimetry missions/instruments (AltiKa, WSOA, Water,…)

• Contribute to space measurements of other ocean physical parameters : - salinity : SMOS, CNES contribution to ESA project - directional wave spectrum (SWIM/CFOSAT) - ocean colour (SSO or GEO)

• Prepare ocean applications of ORFEO (Cosmo SkyMed/Pleiades) : mainly coastal applications


TOPEX/POSEIDON (CNES/NASA)

LauncherDORIS & POSEIDON

Mission Center

Reference missionOcean Large scale

Earth reference system

SPOT2 (CNES)DORIS

SPOT3 (CNES)DORIS

SPOT4 (CNES)DORIS

SPOT5 (CNES)DORIS

1990

2000

Jason-1 (CNES/NASA)Satellite bus

DORIS & POSEIDONControl & Mission Center

ERS-1 (ESA) Altimeter algorithm

ENVISAT (ESA)DORIS

Altimeter ProcessingArchive & distrib.

ERS-2 (ESA)

experiment

operational

CRYOSAT2 (ESA)DORIS

Jason-2 / OSTM (CNES/NASA/EUMETSAT/NOAA)

Satellite busDORIS & POSEIDON

Control & Mission Center

ALTIKA/SARAL(CNES/ISRO)

Altimeter, radiometer, DORIS, Lra

Process, archive & distrib.

SALP : Altimetry and precise positioning service

MERCATOR : assimilation, forecastCNES / SHOM / METEOFRANCE / IFREMER / CNRS / IRD

PLEIADES (CNES)DORIS

2005CRYOSAT (ESA)DORIS

2010

HY-2 (CNSA)DORIS ?

CNES involvment in altimetryCNES involvment in altimetry

Complementing missionmesoscale, ice


Status of altimetry missions/activitiesStatus of altimetry missions/activities

■ TOPEX/POSEIDON : Stopped after more than 13 years of ocean observations

■ Jason1/TOPEX tandem mission : success !■ ENVISAT

excellent synergy with Jason1 (T/P and ERS complementarity further improved)

■ DORIS 5 DORIS receivers simultaneously in flight : earth reference system strengthened

■ MERCATOR inter Agency structure for the implementation of an oceanographic forecasting center in Europe in the mid term

(GMES Marine Core Service)

■ AltiKa : Implementation phase approved. Launch possible from end-2009.■ SALP/SSALTO/AVISO : multi-mission ground segment■ Next Step : possible contribution(s) to HY-2A/Water/SENTINEL3/JASON3 (TBD)

■ Important notice to OST-ST members : new Research Announcement for the next 4-years : NASA AO : see ROSES. CNES/EUMETSAT AO : see AVISO website

New team in place early 2008 (before Jason2/OSTM launch)


AVISO Data user teamsAVISO Data user teams


Jason1Jason1

■ Qualified in orbit

■ Operational mission underway

■ Products distributed routinely

■ CNES operations funded through SALP

■ Required lifetime : 3 years (achieved in december, 2004)

■ Extended mission: 5 years (achieved in december, 2006)

■ Extension agreement for 5 more years of operation signed between CNES & NASA on december, 2006


Jason2/OSTM European sideJason2/OSTM European side

■ Cooperative Framework between NOAA/NASA/EUMETSAT/CNES

basic mission, continuation of Jason1 (Core Mission) Technological passengers to enhance DORIS performance

(CARMEN2/LPT, T2L2) 4-party MOU signed LPT CNES/JAXA MOU signed

■ CNES program approved in April, 2004

■ EUMETSAT program approved in June, 2003 CNES/EUMETSAT agreement signed

Launch date : june 15, 2008


SARAL/AltiKaSARAL/AltiKa

■ Program approved on december, 2005 Altimetric Gap filler between ENVISAT & SENTINEL3 Research oriented mission :

- new, higher frequency, greater performance- potential new applications on ice, land, coast areas

…but with a consolidated architecture : conventional altimeter

■ Cooperative framework : CNES/ISRO Initially, AltiKa wa supposed to be embarked on OCEANSAT3 mission (with other

ocean-dedicated sensors…) However, delay on OCEANSAT3 schedule May/June 2006 : CNES&ISRO proposition to embark AltiKa payload with Argos3, on

a new platform, named SSB (Small Satellite Bus), which is presently being developed by ISRO.

July2006/November2006 : CNES&ISRO technical studies to assess the feasibility : ok

Confirmation of CNES&ISRO cooperation on this new baseline obtained on December 2006 : SARAL mission (Satellite with ARgos & ALtika)

CNES/ISRO MOUs signed in february, 2007 Tentative launch date : end-2009/early-2010

■ Data policy : ~ the same as JASON missions (through CNES/ISRO RAs)


Status of altimetry programsStatus of altimetry programs

91 92 93 94 95 96 97 98 99 00 01 02 03 04 05

RA/ERS-1

ERS/GFO

05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

On going mission EUM managed mission pending approval

Post-EPS-1

AltiKa/SARAL

Envisat

Approved mission GMES mission pending approval

Jason-3

Pending Jason follow-on IPO managed mission pending approval

66° inclination

High inclination

Jason-1

Sentinel 3

NPOESS

Jason-2

HY-2A

CRYOSAT2


DORIS

Next StepsNext Steps

■ HY-2A : CNESHY-2A : CNES/CNSA discussions underway/CNSA discussions underway Payload : Dual frequency altimeter, nadir 3-frequency radiometer, 5-frequency

scanning radiometer, scanning scatterometer, +DORIS/GPS/LRA Orbit : SSO 6am-6pm, 14 days (after 1-year geodetic mission) Launch : 2009

■ JASON3 : (see dedicated presentation) NOAA/EUMETSAT cooperation with EC, CNES & NASA (TBC) contributions CNES in-kind contribution : Proteus platform and project team equivalent to

JASON/OSTM (i.e. about one third of European part of the program) Launch : end-2012

■ WATER (or SWOT) : CNES/NASA discussions underway Ku/C nadir altimeter (SRAL) + Ka-band wide-swath SAR-altimeter Phase 0 in 2007 (CNES/JPL) Cooperation scheme TBD Launch : 2013-2016 timeframe

■ and contributions to ESA/EC missions : Cryosat2, Sentinel3 (TBD) : see dedicated presentation

CNES program status CNES program status E. Thouvenot, CNES March 2007.

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