WFC3 IR Ground P-Flats

Details WFC3 IR Ground P-Flats WFC3 IR Ground P-Flats

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008wfc..rept...28b&link_type=abstract

WFC3 Instrument Science Report 2008-28, 14 pages

Physics

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

Scientific paper

IR external flat field exposures from WFC3 thermal-vacuum campaign 3 have been used to construct and deliver an initial set of IR pixel-to-pixel flat field reference files for the 15 imaging filters in the WFC3 IR channel. The flats have a mean signal-to-noise ratio of ~500, which yields corrections down to a level of ~0.2%. The flats have some artifacts related to their ground-based origin, which will need to be addressed in order to properly calibrate on-orbit images. These data show that the IR4 flight detector easily meets and exceeds the applicable IR flat field-related CEI requirements.

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