THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - ROSA -
Full Name Radio Occultation Sounder for the Atmosphere Status Operational
Instrument Agencies ASI, ISRO Maturity
Instrument Type Atmospheric temperature and humidity sounders and Precision orbit Geometry Occultation
Instrument Technology GNSS radio-occultation receiver Sampling Sounding
Data Access Constrained Access Data Format RINEX
Measurements and Applications Climate change studies. High-vertical resolution temperature-humidity sounding for NWP. Space weather.
Resolution Summary 300 km (horizontal), 0.5 km (vertical).
Swath Summary N/A (occultation); about 300 soundings/day.
Accuracy Summary Bending angle: 0.5 µ rad
Waveband Summary Around 1600 MHz (L1) and 1200 MHz (L2).
MW (~1.0 cm - ~100 cm)
L-Band (2 - 1 GHz)
Instrument Measurements
CategoryParameterAccuracy
Atmospheric Temperature FieldsAtmospheric temperature (LT, HT, LS, HS&M, TC) 
Atmospheric temperature (at surface) 
Instrument Missions
OCEANSAT-2 - Ocean Satellite-2 (2009 - 2017)
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