WFC3: UVIS Detectors On-orbit Performance

Details WFC3: UVIS Detectors On-orbit Performance WFC3: UVIS Detectors On-orbit Performance

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21546310b&link_type=abstract

American Astronomical Society, AAS Meeting #215, #463.10; Bulletin of the American Astronomical Society, Vol. 42, p.496

Computer Science

Performance

Scientific paper

The Wide Field Camera 3 (WFC3) was installed on the Hubble Space Telescope (HST) in May 2009. A panchromatic camera, WFC3 possesses both a UVIS channel (200-1000nm) and an IR channel (850-1700nm). The UVIS channel contains a pair of 4096x2051 pixel E2V Technologies CCDs, covering a 160x160 arcsec field of view at 0.04 arcsec/pixel. A set of 62 filters plus an ultraviolet grism provides coverage of the full spectral range. Initial on-orbit performance characteristics are excellent: readnoise is 3.1-3.2 e-, dark current is 1.5 e-/pix/hr (requirement was <20 e-/pix/hr), and gain is 1.6 e-/DN. Details of these and other detector tests performed as part of the commissioning phase during the summer of 2009 and the first Cycle 17 calibration tests during the fall of 2009 are summarized in his paper.

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