Absolute Photometric & Spectrophometric Calibration

Details Absolute Photometric & Spectrophometric Calibration Absolute Photometric & Spectrophometric Calibration

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10740b&link_type=abstract

HST Proposal ID #10740

Physics

Hst Proposal Id #10740

Scientific paper

This program has several goals: 1.}Verify repeatability of the ACS instrumentation on a single bright star to +/-0.2%. 2.}Determine any shift in the filter bandpasses since the preflight lab measurements. 3.}Determine the relative magnitude of the 3 primary WD calibrators to 0.1%. 4.}Refine the sensitivity calibration of the CCD prism and grisms at field center and determine the repeatability accuracy of this calibration. 5.}Determine the level of variability of the three HST red standard stars: VB-8 {M7}, 2M0038+18 {L3.5} and 2M0559-14 {T5}, and also measure their short wavelength {<7000A} fluxes. 6.}Cross calibrate with a faint STIS and NICMOS standard WD and solar analog star.

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