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Operational News

Operational news about Ssalto and Duacs processing system.

02.03.2012 [Jason-1] Jason-1: on the road to recovery

As you may know, Jason-1 is in safe-hold-mode since February 16th 17:20 UTC due to an anomaly detected on the gyro 3. After analysis of the problem (certainly caused by a SEU (Single Event Upset) in the SAA (South Atlantic Anomaly) zone), Jason-1 is about to recover nominal situation.[more]


17.02.2012 [Jason-1] Jason-1 in Safe Hold mode

Dear users,

Jason 1 is in Safe Hold Mode since February 16th at 17:20 UT.

CNES and NASA/JPL are currently analyzing the problem to find the origin of this situation.

Note that no data will be available during this unfortunate event, we will keep you informed about the results of investigations as soon as possible.[more]


09.02.2012 [Jason-2] Temporary interruption due to altimeter calibration on 2012/02/10

Please note that there will be a mission unavailability of 33 minutes and 22 seconds on Jason-2 on Friday, 10 February 2012 between 00h42mn32s and 01h15mn54s TU.

This interruption is due to special calibration of the POSEIDON-3 altimeter.

Therefore, some altimetry data will miss and data gaps are expected in Duacs along-track products.[more]


24.01.2012 [Envisat] New orbit standards in GDRs and in Ssalto/Duacs products

To improve the long-term stability of the GDR orbit solutions, new orbit determination standards are applied for Envisat which are now included in the Ssalto/Duacs products.[more]


17.01.2012 Temporary interruption for all GDR files on Cnes FTP server January 20, 2012

Cnes FTP servers may be momentarily unavailable due to maintenance on Friday, January 20th, 2012. All GDR files are concerned.[more]


30.12.2011 [Envisat] Radiometer back to operational mode, Reset of DORIS instrument

The Envisat Radiometer is back to operational mode and DORIS instument has been reset on December, 27th, 2011[more]


23.12.2011 [Envisat] Radiometer anomaly

Due to an anomaly on the Envisat radiometer since 20th December 2011, some Duacs products are impacted.[more]


28.09.2011 [Jason-1] : orbit impacts due to satellite maneuvers

As endorsed by the Joint Steering Group held on September 14th, Jason-1 satellite will be performing a series of maneuvers between 28-Sept and 17-Oct 2011, to burn off excess hydrazine.[more]


23.09.2011 Anomaly impacting some files of DUACS RT & NRT products

Due to technical problems, part of the accuracy of Real-Time and Near Real-Time products from September 19 to September 22, 2011 is degraded. [more]


08.09.2011 [Jason-1] : orbit impacts due to satellite maneuvers

Jason-1 is starting a serie of maneuvers. Some impacts are expected in terms of orbit quality on IGDR products.[more]


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