24 June 1997
On June 25th 1997, the ERS-1 USO file correction will be modified
as to compensate for a 10.3 mm bias that were already applied to
the altimetric range of data acquired between 14-10-1991 through
20-03-1995. Products concerned are the Altimeter URA FD (Fast
Delivery data) and QLOPR (Quick Look Ocean PRoduct).
23 June 1997
The next ERS-2 orbit maintenance manoeuvre is scheduled for the night between June 30th and July 1st 1997. It will be a one burn FCM manoeuvre. Present preliminary planning is to make a Delta-V of 6.4 mm/s at 1:11 Z.
23 June 1997
The ERS-2 Low Rate Data Processing Facility (LRDPF) has been enhanced as to include the processing of the SAR wave data as from 25th June 1997. The algorithm remains unchanged. The switch will apply to the first Kiruna orbit followed by Maspalomas and Gatineau stations late on the same day.
18 June 1997
This new table compensates for the 0.2 dB increase of the sigma-nought observed after the switch to the redundant Calibration Subsystem on 6 August 1996.
Due to a difference between the Calibration Subsystem DC/DC converter A and B on ERS-2, a new compensatory Look-Up-Table for the ERS-2 Scatterometer will be installed in all stations starting with the first orbit of Kiruna on Wednesday 18 June 1997.
ERS-2 has been moved in order to keep a nominal "ERS-1 and 2" satellites position.
02 June 1997
Opening of the first services from the new ESA Multimission RS Product Catalogue.
29 May 1997
Instead of August-September 1997, the next "O'Higgins Campaign" has been anticipated to 26-Jun-97 (UTC 00:00) through 18-Jul-97 (UTC 10:00). Although the timespan covered is limited to 23 days a very good coverage of the area will be obtained. User requests for sensing during the above dates should be sent within June 4th 1997.
21 May 1997
A new version of the document Derivation of the Backscattering Coefficient Sigma-Nought in ESA ERS SAR PRI Products published H.Laur, P.Bally, P.Meadows, J.Sanchez, B.Schaettler, E.Lopinto has been released. Full text is available online. Several changes have been introduced. The most significant of which has been the removal of the replica correction factor possible thanks to the latest calibration findings on the ERS-2 satellite. ERS-2 - much more stable than ERS-1 - has actually shown that its replica power variations are strongly related to the transmission ones.
20 May 1997
5 new SAR images on the Red River flood (USA & Canada - April 1997). Earth Watching has been renewed and completed with new images, improved resolution and limited Kb. It now contains about 150 images divided in 4 groups: Fire events, Flood events, Oil Spill events and Volcanic events. 2 new items: Monitoring Etna's activity and the 1992 flood in Toscana (Italy).
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