Ground characterization of the Wide-field Infrared Explorer (WIRE) instrument

Details Ground characterization of the Wide-field Infrared Explorer (WIRE) instrument Ground characterization of the Wide-field Infrared Explorer (WIRE) instrument

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3437...60k&link_type=abstract

Proc. SPIE Vol. 3437, p. 60-70, Infrared Spaceborne Remote Sensing VI, Marija Strojnik Scholl; Bjorn F. Andresen; Eds.

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Scientific paper

The Wide-Field Infrared Explorer (WIRE) is a small cryogenic spaceborne infrared telescope being readied for launch in September 1998 as the fifth of NASA's Small Explorers. WIRE utilizes two 128 X 128 Si:As Focal Plane Arrays (FPAs) produced by Boeing North American with a 30 cm diameter Ritchey Cretien diamond turned mirror system. This mission takes advantage of recent advances in infrared array detector technology to provide a large sensitivity gain over previously flown missions. Two broad pass bands are defined for a deep pointed survey to search for protogalaxies and to study the evolution of starburst galaxies. The Space Dynamics Laboratory at Utah State University (SDL/USU) used the multifunction infrared calibrator and other special purpose cryogenic equipment to perform a ground characterization of the WIRE instrument. The focus was verified cold with two independent measurements. Both in-band and out-of-band Relative Spectral Response measurements were made; some sensitivity to temperature, bias voltage, and location on the long wavelength focal plane array were found. Dark current and dark noise measurements are also reported.

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