In-flight performance of the Faint Object Camera of the Hubble Space Telescope: IV

摘要

This paper continues the series of reports on the performance of the faint object camera as its on-orbit lifetime draws to a close. We review the performance of the COSTAR-corrected FOC during routine science operations, concentrating on f/48 longslit spectroscopy, imaging polarimetry, absolute sensitivity, focus effects and geometric distortion monitoring. Plans for the closeout of the instruments before its withdrawal in the third HST servicing mission in 1999 are discussed.