SMOV Proposal 4258: Pre-COSTAR Baseline Sensitivity

Details SMOV Proposal 4258: Pre-COSTAR Baseline Sensitivity SMOV Proposal 4258: Pre-COSTAR Baseline Sensitivity

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ghrs.rept...59s&link_type=abstract

GHRS Instrument Science Report 059, 3 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Ghrs, Goddard High Resolution Spectograph

Scientific paper

SMOV Proposal 4258 was executed 21 December 1993. Observations of the standard star BD + 28 degrees 4211 were taken with the three first order gratings (G160M, G200M, and G270M) at five wavelengths (1200, 1500, 2000, 2500, and 3000 A) in both the large science aperture (LSA) and the small (SSA). The LSA observation at 3000 A was lost due to a carrousel reset. An increase of approximately 9% in throughput was seen which has been attributed to a movement of the secondary mirror. Fluxes of targets observed with the GHRS in Cycle 3.5 may appear to be too high by amounts which will depend on the secondary mirror position but which should be predictable.

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