[22.02] In-flight Performance of the Infrared Array Camera (IRAC) for SIRTF

AAS 203rd Meeting, January 2004
Session 22 First Results from the Space Infrared Telescope Facility (SIRTF)
Poster, Monday, January 5, 2004, 9:20am-6:30pm, Hanover Hall

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[22.02] In-flight Performance of the Infrared Array Camera (IRAC) for SIRTF

G. G. Fazio, J. L. Hora, L. E. Allen, M. L. N. Ashby, P. Barmby, L. K. Deutsch, J.-S. Huang, M. Marengo, S. T. Megeath, M. A. Pahre, B. M. Patten, Z. Wang, S. P. Willner (Harvard/Smithsonian CfA), W. F. Hoffmann (University of Arizona), H. Moseley, R. Arendt, J. E. Mentzell, C. Trout-Marx (NASA/GSFC), P. Eisenhardt, D. Stern, V. Gorjian (JPL), B. Bhattacharya, W. J. Glaccum, M. Lacy, P. J. Lowrance, S. J. Carey, S. Laine, J. Stauffer, J. A. Surace, W. T. Reach, G. Wilson (SIRTF Science Center), J. L. Pipher, W. J. Forrest (University of Rochester), C. R. McCreight, M. E. McKelvey, R. E. McMurray (NASA/Ames)

The Infrared Array Camera (IRAC) is one of three focal plane instruments in the Space Infrared Telescope Facility (SIRTF). IRAC is a four-channel camera that obtains simultaneous images at 3.6, 4.5, 5.8, and 8 microns. Two adjacent 5.2x5.2 arcmin fields of view in the SIRTF focal plane are viewed by the four channels in pairs (3.6 and 5.8 microns; 4.5 and 8 microns). All four detector arrays in the camera are 256x256 pixels in size, with the two shorter wavelength channels using InSb and the two longer wavelength channels using Si:As IBC detectors. We describe here the performance of the instrument after launch during the In-Orbit Checkout (IOC) period, including the sensitivity, optical quality, and stability.

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