BackForwardInstrument:  SCA (GRACE) 

Instrument details
Acronym SCA (GRACE)
Full name Star Camera Assembly
Purpose Precise orbitography and satellite attitude control
Short description

Assemblage of two star cameras
Background

Part of a package of instruments for measuring the Earth's gravity field
Scanning Technique

N/A
Resolution N/A
Coverage / Cycle N/A
Mass Power Data Rate

 

Providing Agency DNSC
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2002 to 2035
Last update: 2026-06-01
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 No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
  • Ground water
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
Geoid5 - marginalHighly indirect.Opportunity information from star tracker used for satellite navigation and attitude control
Gravity field5 - marginalHighly indirect.Opportunity information from star tracker used for satellite navigation and attitude control