Status and Testing of the HST Wide Field Camera 3

Computer Science – Performance

Scientific paper

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Scientific paper

Wide Field Camera 3 (WFC3) is a next generation UV-optical-near-infrared camera planned for installation into the Hubble Space Telescope during Servicing Mission 4 in 2008. The UVIS imaging channel provides a 4096 x 4096 pixel CCD detector covering the 200 to 1000 nm spectral region with a 160 x 160 arcsecond field of view. It provides 62 filters plus a near UV grism, 3 electrons read noise, and excellent image quality. The UVIS channel will maintain HST’s superb imaging capabilities in visible light and offer a dramatic increase in wide field near ultraviolet high resolution imaging. The IR imaging channel provides a 1014 x 1014 pixel HgCdTe detector covering the 800 to 1700 nm spectral region with a 123 x 136 arcsecond field. Equipped with 15 filters and 2 grisms, this channel will greatly extend HST’s infrared capabilities with improved sensitivity and seven times the field of the NICMOS camera. We report on the current status of WFC3, provide updated estimates of its performance, present results from its ongoing test and calibration program, and discuss plans for its on-orbit commissioning.

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