WFC3 TV3 Testing: Subarray Photometry

Details WFC3 TV3 Testing: Subarray Photometry WFC3 TV3 Testing: Subarray Photometry

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010wfc..rept....1m&link_type=abstract

Instrument Science Report WFC3 2010-01, 16 pages

Computer Science

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

Scientific paper

We compare photometry of a star-like object observed with the infrared flight detector of WFC3 (IR-4) using imagery from thermal vacuum test 3 (TV3) in subarray mode to a full-frame image of the same object. The photometry is identical within measurement uncertainty (0.5% r.m.s.) for imagery obtained with the full-frame (1024 pixels by 1024 pixels) and the 64 pixel by 64 pixel subarray. Photometry from 64x64 subarray imagery gives similarly identical results regardless of which of the four quadrants the target is positioned.

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