Monitor Long-Term Stability of the Fgs's Extension

Details Monitor Long-Term Stability of the Fgs's Extension Monitor Long-Term Stability of the Fgs's Extension

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992hst..prop.4151j&link_type=abstract

HST Proposal ID #4151

Physics

Hst Proposal Id #4151

Scientific paper

The goal of these measurements is to monitor the internal positional stability of the FGSs by measuring a few stars in "check fields" repeatedly during the SV period. The results of these measurements are the stability characteristics of the FGS to allow an estimate of the frequency of OFAD re-calibrations. NOW USES WvA positions for PROX and ref frame. 910920 Modified 910920 by F. Benedict to 1) observe Proxima Cen starting 920201 2) do either FGS 1 or FGS 3 THIS IS AN FGS 3 TEST Modified 8 Feb 92 to remove v=16.25 target and change pupil to F583W. Modified 4/14/92 add two stars + extension through August 1992 F. Benedict Data are acquired during each of two orbits on each date. This provides redundancy and space for internal test source observations.

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