WFC3 UVIS Detector: On-Orbit Performance

Details WFC3 UVIS Detector: On-Orbit Performance WFC3 UVIS Detector: On-Orbit Performance

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725437b&link_type=abstract

American Astronomical Society, AAS Meeting #217, #254.37; Bulletin of the American Astronomical Society, Vol. 43, 2011

Computer Science

Performance

Scientific paper

Installed in the Hubble Space Telescope (HST) in May 2009, the Wide Field Camera 3 (WFC3) is performing extremely well on-orbit. The UVIS channel (200 to 1000 nm) contains a pair of e2v 4Kx2K CCDs, covering a 160x160 arcsec field of view at 0.04 arcsec/pixel. This report summarizes the performance of the WFC3 UVIS detector, including primary characteristics such as read noise, dark current levels, hysteresis prevention, and photometric stability. We also present ongoing studies of the evolution of the detector including the effects of radiation damage on the charge transfer efficiency (CTE) of the CCDs and strategies for mitigating those CTE losses.

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