STScI Logo

Hubble Space Telescope
GHRS Instrument Science Report 051

GHRS Instrument Science Report 051

"GHRS Relative Sensitivity Monitoring"

David R. Soderblom, Lisa E. Sherbert, Stephen J. Hulbert, Ronald L. 
Gilliland and Hashima Hasan

Abstract excerpted from the report:

GHRS observations of BD+28degrees 4211 since 13 Jan 1992 show that the
sensitivity of the GHRS is stable to within 3.6% or better and that the
variations seen are consistent with throughput variations due to focus
changes and minor centering errors. A plot of the sensitivity over 
this time is provided with indication of focus changes in the OTA.