BackForwardInstrument:  GPSR 

Instrument details
Acronym GPSR
Full name GPS Reflection
Purpose To observe ocean surface roughness, from which wind speed is retrieved.
Short description A nadir pointing antenna to measure surface reflection of GPS and GLONASS signals.
Background This mission replaces the planned COSMIC-2b constellation.
Scanning Technique N/A
Resolution
Coverage / Cycle
Mass Power Data Rate

 

Providing Agency NSPO
Instrument Maturity Flown on operational programme
Utilization Period: TBD
Last update: 2023-10-02
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Other payload component
  • Positioning system
WIGOS Subcomponents
  • Subcomponent 2
  • GNSS reflectometry (GNSS-R) missions, passive MW, SAR
  • Constellation of GNSS receivers [for reflectometry]
Mission objectives
Primary mission objectives
  • Wind speed (near surface)
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
Geoid4 - fairHighly indirect.Opportunity information from GNSS receiver used for precise orbit determination
Gravity field5 - marginalHighly indirect.Opportunity information from GNSS receiver used for precise orbit determination
Wind speed (near surface)*5 - marginalOver sea only.. Infrequent coverage.Wind speed estimated from the intensity of signals from different incidence angles, reflected normally