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Operational News

Operational news about Ssalto and Duacs processing system.

24.11.2009 Delay in GDR production for Jason-1 cycles 284 onwards

Due to a recalibration on the Jason-1 Microwave Radiometer, Jason-1 GDR production for cycle 284 onwards will be delayed.[more]

16.11.2009 [Jason-2] systematic validation reports available

All the Jason-2 systematic validation reports, including a series of quality controls and statistical analysis, have been published on the Aviso web site.[more]

09.11.2009 [Ssalto] Temporary Postponement for 10 cycles of new version C Jason-1 GDR

Reprocessing of Jason-1 GDR-C is still on going. Please note that cycles 131 to 140 have been temporarily removed from the Aviso ftp server, waiting for new products. See all the cycles currently available on .

All the new version C Jason-1 GDR should be deliver until the end of the year.


18.02.2009 [Jason-2 IGDR] update of AMR and Poseidon3 characterisation files

AMR and Poseidon3 characterisation files used in the Jason-2 processing chains have been updated on the 18th of February 2009. Impact is expected on Jason-2 IGDR product quality beginning cycle 23.[more]

18.02.2009 Jason-1 on its new orbit

Jason-1 is on its new orbit since the 14 February 2009 at 20:51 UTC.

Nominal production of all data products is ongoing.

21.01.2009 Jason-2 IGDR products available

Jason-2 IGDR products are available on AVISO server from now.

These products are computed at CNES in NetCDF file format.


3 types of files are available :

- a IGDR native NetCDF formatted datasets ("standard product");

- a reduced 1Hz subset of the full dataset (IGDR-SSHA);

- an expert sensor product containing the full radar-echo waveforms (S-IGDR)

21.01.2009 [DUACS] Switch from Jason-1 to Jason-2

The DUACS system has switched from Jason-1 to Jason-2 this morning (January 21 2009).Jason-2 is used as the reference mission for the orbit error reduction scheme.

When Jason-1 will reach its new orbit, we'll re-integrate it in the multisatellite system (tentative date: February 16)Another news will be published when it will be effective.[more]

14.01.2009 Jason-1 shifted on a new orbit

Jason-1 will be shifted on a new orbit, beginning January 26 (cycle 260) up to February 8 or 9 (beginning of cycle 262). Jason-2 takes over the reference ground track.

11.09.2008 Ssalto/Duacs products updated

After the problem detected on Jason-1 the 2008/08/07, Jason-2 data was integrated in Ssalto/Duacs near-real time processing.

In order to consolidate the quality of Duacs data over the past weeks,  the data were reprocessed (between the 2008/08/07 - 2008/08/29 for the gridded products and between the 2008/08/07 - 2008/09/02 for the along track products). The regional product on the Mediterranean Sea (regional-mfstep) is also concerned for the gridded and along track data. Today, all is nominal.

To be regularly advice of Ssalto/Duacs updates, feel free to contact the Aviso user service ( with "Subscribe Ssalto/Duacs updates" as subject.[more]

26.08.2008 DUACS production resumed this morning

A back up processing chain will be set in place.

Click on the link for more informations...[more]

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