THE CEOS DATABASE : Missions, Instruments and Measurements
Full Name Community Initiative for Continuing Earth Radio Occultation 6 Status Operational (extended)
Mission Agencies GeoOptics Launch Date 23 Jun 2017
Mission Links EOL Date Dec 2023
EO Portal Info NORAD Catalog #
International Designator
Orbit Type Sun-synchronous Orbit Period
Orbit Sense Orbit Inclination 97.44 deg
Orbit Altitude 504 km Orbit Longitude
Orbit LST 09:30 Repeat Cycle
Objectives and Applications CICERO satellites host CION instruments (CICERO Instrument for GNSS-RO) which perform GNSS-RO by sensing radio signals broadcast by GNSS satellites (GPS and Galileo) and measuring the phase delay due to refraction during occultation. Second-generation CICERO-2 satellites (two launched in 2022) carry an improved CION instrument, CION-2, which measures reflected signals from the sea surface and has a polarimetric capability, in addition to GNSS-RO. CION and CION-2 data produce high-accuracy profiles of atmospheric pressure, temperature, and moisture; 3D maps of the electron distribution in the ionosphere; and information on ocean and ice properties.
Mission Measurements
Mission Instruments
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