WFPC2 Cycle 4 Cal: UV Flats

Details WFPC2 Cycle 4 Cal: UV Flats WFPC2 Cycle 4 Cal: UV Flats

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995hst..prop.6191b&link_type=abstract

HST Proposal ID #6191

Physics

Hst Proposal Id #6191

Scientific paper

UV flat fields will be obtained with the cal-channel's ultraviolet lamp {UVFLAT} using the UV filter set {F122M, F170W, F160BW, F185W, and F336W}. The UV flats will be used to monitor UV flat field stability and the stability of the Woods filter {F160BW} by using F170W as the control. The F336W ratio of VISFLAT {Cycle 5 proposal 6189}/UVFLAT ratio will provide a diagnostic of the UV flat field degradation and tie the UVFLAT and VISFLAT flat field patterns together. Two supplemental darkframes must be obtained immediately after each use of the lamp, in order to check for possible afterimages.

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