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Instrument image

The Laser Retro-Reflector (LRR) is mounted on the Earth-facing panel of Envisat close to the RA-2 antenna to support satellite ranging for precise orbit determination and RA-2 range measurement calibration. Laser tracking provides the distance between the spacecraft and the station and is assimilated in precise orbit determination. It will be used extensively during the commissioning phase and regularly during the mission to verify the stability of the positioning system.

Status
Not Operational
Type
Passive optical instrument
Technical Characteristics
Accuracy:
Efficiency: less or equal than 0.15 end-of-life, Reflection Coefficient: less or equal than 0.80 end-of-life, Field of view: elev. half-cone angle 60 degrees; azimuth 360degrees, Diameter: more or equal than 20 cm
Spatial Resolution:
Swath Width:
Waveband:
350-800 nm optimised for 532 nm
Earth Topics
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Related Instruments
Available Resources Type Access
ESA Bulletin, Nr. 106 - ENVISAT Special Issue ESA Bulletin link
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SMOS, ERS, Envisat data collections maintenance - 30 October 2019

29 October 2019

Due to a software maintenance on Wednesday 30 October, the following downtimes are scheduled:

  • ERS and Envisat dissemination service: from 09:00 to 11:00 CET
  • SMOS data dissemination service: from 11:00 to 13:00 CET.