Guide Star Acquisition Verification for FGS1 and FGS3

Details Guide Star Acquisition Verification for FGS1 and FGS3 Guide Star Acquisition Verification for FGS1 and FGS3

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7006l&link_type=abstract

HST Proposal ID #7006

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Hst Proposal Id #7006

Scientific paper

After the release of HST from the shuttle bay itis necessary to verify that the guide star acquisitionscan be performed successfully. Four pairs of guide starswill be acquired in FGS1 and FGS3 and held in finelock for 15 to 40 minutes. Some re-acquisitionswill be initiated.Pre-requisites for this test are the Gyro/FHST alignmentif a Gyro has been replaced and the FHST/FGS Calibration ifit is determined that the servicing mission caused amisalignment. Special requirements include some real-timeengineering telemetry and use of the largest search radius. Other than possiblyaccommodating a small alignment shift by increasing the operationalsearch radius, no onboard or PDB updates are anticipated.This proposal will only be used if the replacement FGSgoes into Bay 2. Proposal 7028 will be used if the replacementis put in Bay 1.

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