THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - POSEIDON-1 (SSALT-1) -
Full Name Positioning Ocean Solid Earth Ice Dynamics Orbiting Navigator (Single frequency solid state radar altimeter) Status No longer operational
Instrument Agencies CNES Maturity
Instrument Type Radar altimeters Geometry Nadir-viewing
Instrument Technology Radar altimeter Sampling Sounding
Data Access Data Format
Measurements and Applications Nadir viewing sounding radar for provision of real-time high precision sea surface topography, ocean circulation and wave height data.
Resolution Summary Typical: 5 - 11 km
Swath Summary
Accuracy Summary
Waveband Summary KU-Band (13.575 GHz)
MW (~1.0 cm - ~100 cm)
Ku-Band (12.5 to 18 GHz)
Instrument Measurements
CategoryParameterAccuracy
Ocean surface windsWind speed over sea surface (horizontal) 
Ocean topography/currentsSea level 
Ocean wave height and spectrumSignificant wave height 
Instrument Missions
Topex-Poseidon - Topographic Experiment/Poseidon (1992 - 2006)
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