Minimize SAR

The SAR menu to your right provide information concerning the SPPA activities for this instrument. 


A brief description of the instrument, its operations and main mission highlights is available in the sections below:

  Sensor Description   |    Sensor Modes   |   Mission Operations Overview    

Minimize Sensor Description

ERS-1 was launched in July 1991 with its primary instruments being an active microwave instrument (AMI), a radar altimeter, an along-track scanning radiometer and microwave sounder.  The AMI comprised two seperate radars - a Synthetic Aperture Radar (SAR) and Wind Scatterometer. These enable three modes of operation - Image Mode, Wave Mode (both performed by the SAR) and Wind Mode (performed by the Wind Scatterometer).

The ERS-1 mission ended in March 2000. Full details of the ERS-1 mission can be found here.



ERS-1 (solar panel to the left of the platform, SAR and Wind Scatterometer to the right of the platform.) Learn more about the ERS-1 spacecraft and sensors here.



The ERS-1 acquisition plan and the various modes of operation are provided here. The standard operational mode provided a 35 day repeat orbit. During the early part of the ERS-1 mission other repeat periods were used: an ice mode (3 day repeat),  geodetic mode (168 day repeat) and tandem mode (joint interferometric mode with ERS-2).

An example plan for February 1996 is show below:



The ERS-1 SAR acquisitions information is stored in the EOLI catalogue (the Client for browsing the catalogue can be downloaded here).