HST Astrometry Angular Resolution Test

Details HST Astrometry Angular Resolution Test HST Astrometry Angular Resolution Test

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7684n&link_type=abstract

HST Proposal ID #7684

Computer Science

Hst Proposal Id #7684

Scientific paper

The ability of the HST FGS to detect and resolve close faint binary stars and measure their orbits is unique and unchallenged by current ground-based techniques. SMOV tests with FGS1R have revealed except- ional S curve morphology at pickle center. This test is designed to measure and compare the resolution of the TRANSFER mode of the new FGS1R and FGS3. A known binary will be observed in TRANS mode at multiple orientations in each instrument in order to sample the sensitivity along each FGS axis. Some POS mode observations will be obtained during each orbit in order to indepen- dently determine the relative orientation of each observation.

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