WFC3 Cycle 18 Calibration Program

Details WFC3 Cycle 18 Calibration Program WFC3 Cycle 18 Calibration Program

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011wfc..rept...14d&link_type=abstract

Instrument Science Report WFC3 2011-14, 33 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Wide Field Camera 3, Wfc3

Scientific paper

The WFC3 Cycle 18 Calibration Program runs from October 2010 through September 2011, and will measure and monitor the behavior of the WFC3/UVIS and WFC3/IR channels. Calibration programs include characterization of geometric distortion, zeropoints, sensitivity, flatfields and filter transformations; daily monitors for detector gain, darks and biases; monthly anneals (CCDs), "bowtie" pinning, as well as programs to improve the IR detector's persistence mitigation, and to better measure its count rate nonlinearity (reciprocity failure). New programs include developing spatial scanning capability, charge injection to mitigate CTE losses and zeropoint determination with an expanded set of standard stars.

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