07 July 1997
ERS User Services and Eurimage are pleased to announce the new release of DESCW. This new version is fully compatible with Windows 3.1 systems. Moreover many more features are available. Please also note the new ftp address.
In order to avoid problems of incompatibility between products generated before and after the introduction of the recent SAR processing chain, and more generally along time, ESA will interrupt the supply of ERS-1 and 2 already processed products currently held in its archive and remove this item from the pricelist and from its catalogues (e.g. from DESCW). As a consequence production of already acquired data will have to go through the same current processing chain as any newly acquired data. This measure will enter into force on September 1st, 1997.
25 June 1997
A new GOME narrow swath operation timeline (already tested on 14 June) has been executed nominally on 24th June 1997. It will be activated thereafter on every day 4, 14 and 24 of each calendar month. Activation of the new mode will start each time at the orbit following the sun observation timeline and will last one day up to the next sun observation. The new timeline is equivalent to the nominal timeline mode and will replace it for a day. The only difference will reside in the swath size which will be 240 km, instead of the normal 960 km swath (improved resolution). Please note that the North and South Pole timelines will not be used until further notice.
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.
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