14 March 2003
Full details of the Envisat product availability are now available including information on product quality.
11 November 2002
The Envisat payload will be switched off approximatelly from orbit 3752 (18/11/2002 04:33) until orbit 3789 (20/11/2002 18:35), as part of the preventive measures taken to minimize the risk of collition during the Leonids Meteor Shower. As the timining of the meteor shower peaks may change, the period of unavailability may be slightly modified accordingly.
21 September 2002
From the 9th to 13th of September 2002 the European Space Agency (ESA) organised a meeting at ESTEC to review the calibration results of the instruments on board its environmental satellite Envisat. The presentations made during the Envisat Calibration Review are available. You can access the presentations and proceedings.
06 July 2002
The satellite reached its final orbit on 3rd April and is since then positioned on its assigned 35 days repeat cycle, 30 minutes ahead of ERS-2; both satellite being controlled to overfly the same ground track, within ý1 Km. Following the successful completion of the satellite and instrument activation, the SODAP Review (Switch On and Data Acquisition Phase) was held 17 April at ESOC, Darmstadt, Germany. All instruments were fully activated by mid April, except SCIAMACHY for which, the Elevation Scanning Mirror cover was opened by mid June.
The calibration activities have been initiated right after the instrument activations, with round orbit data recorded on board and dumped over the PDS Kiruna (Sweden) station as well as real time ASAR and MERIS data received at the Matera (Italy) station. This scenario permits to recover the full global mission data.
All instrument modes have been tried out and very stable performances have been observed with all of them. Most of the instrument processors, installed in the Payload Data Segment, have been already updated to reflect the specific characteristics observed early on in orbit and to prepare for the product release, which will follow the calibration review.
03 March 2002
First (out of four) ASAR panel deployment completed successfully at 03h30 AM. The other 3 deployments will be performed on Sunday and Monday.
02 March 2002
Envisat altitude raised by 3.5 km, to let it drift until it reaches its planned position 30 minutes ahead ERS-2. The drift phase will take 33 days to complete, after which Envisat altitude will be lowered again.
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