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 ≥2023
Last update: 2013-12-22
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
Mission objectives
Opportunity objectives
  • Geoid
  • Gravity field
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Tentative 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
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