Rpt/cal : Spectral Flat Fields - G191B2B Superflat Redux

Details Rpt/cal : Spectral Flat Fields - G191B2B Superflat Redux Rpt/cal : Spectral Flat Fields - G191B2B Superflat Redux

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993hst..prop.5229k&link_type=abstract

HST Proposal ID #5229

Physics

Hst Proposal Id #5229

Scientific paper

The diode to diode variations and photocathode non- uniformities of the FOS detectors were determined in SV for spectra obtained through the single apertures. Additional flat field calibrations were performed in cycle 1 to verify stability and to extend the calibration to include the paired aperture spectra. In this repeat of the failed proposal 2821 observations, we will obtain spectra of G191-B2B, which is known to have a very smooth, relatively featureless spectrum. The star will be observed in every useful RED detector/disperser combination through single apertures. POS_TARG positioning in the dispersion direction is used to shift the spectra, so that instrumental and features can be distinguished.

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