CEOS EO HANDBOOK – MISSION SUMMARY - Etalon -
Full Name Etalon-1 and Etalon-2 Status Operational (nominal)
Mission Agencies Russia Launch Date 01 Oct 1989
Mission Links EOL Date Dec 2030
EO Portal Info NORAD Catalog #
International Designator
Orbit Type TBD Orbit Period 675 minutes
Orbit Sense TBD Orbit Inclination 65 deg
Orbit Altitude 19100 km Orbit Longitude
Orbit LST Repeat Cycle
Objectives and Applications Etalon-1 and Etalon-2 are passive geodetic satellites that perform satellite laser ranging (SLR) to develop high accuracy global references, and study geodynamic processes and long-period disturbances.
Mission Measurements
Mission Instruments
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