ACS photometric Stability

Details ACS photometric Stability ACS photometric Stability

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002hst..prop.9654d&link_type=abstract

HST Proposal ID #9654

Other

Hst Proposal Id #9654

Scientific paper

A spectrophotometric standard star {GRW+705824} is observed through all ACS filters once to assess the sensitivity of the instrument. The star is placed at the centre of the aperture, and two images are taken through each filter. This programme is based on proposal 9020 designed for SMOV and on programme 9563 from the interim period. All the SBC filters {except Lyman alpha F122M} and all UV filters of the HRC are tested as part of other programmes and are not listed here. As regards ramp filters, only one central wavelength is tested per filter. The exposure times have been selected to reach, on average, SNR 350 in the central pixel for broad band filters.

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