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Hubble Space Telescope
GHRS Instrument Science Report 061

GHRS Instrument Science Report 061

"Flux Correction Factors for Pre-COSTAR Observations of Extended
Sources	with the GHRS"

James H. Scott and David R. Soderblom

Abstract excerpted from the report:

The GHRS most frequently observes point sources, and the calibrated
fluxes delivered by PODPS assume such. However, for extended objects 
the flux per unit area of sky is desired, and it is necessary to know 
what fraction of light the GHRS' Large Science Aperture transmits.
This report provides that fraction for several different telescope 
focus positions.