Full Name Global Navigation Satellite Systems (GNSS)- Radio Occultation (RO) Receiver Status Operational
Instrument Agencies NASA Maturity
Instrument Type Atmospheric temperature and humidity sounders Geometry Occultation
Instrument Technology GNSS radio-occultation receiver Sampling Other
Data Access Open Access Data Format NetCDF, BUFR
Measurements and Applications Measurement of bending angles of GNSS satellite signals occulted by Earth's atmosphere for retrieval of temperature and humidity profiles.
Resolution Summary 0.15 to 1.5 km
[Best Resolution: 150m]
Swath Summary
Accuracy Summary Bending Angle measurement accruacy: from 1 to 20 mRad (depending on altitude)
Waveband Summary L1/L2/L5
L-Band (2 - 1 GHz)
Instrument Measurements
Measurements Overview
Atmospheric Humidity FieldsAtmospheric specific humidity (column/profile)
Atmospheric Temperature FieldsAtmospheric temperature (column/profile)
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Temperature (upper-air) click here click here search ECV Inventory records
Water Vapour (upper air) click here click here search ECV Inventory records
Instrument Missions
Sentinel-6 A Michael Freilich - Sentinel-6 Michael Freilich (2020 - 2026)
Sentinel-6 B - Sentinel-6 B (2025 - 2031)