The Infrared Array Camera (IRAC) is one of three focal plane instruments on the Spitzer Space Telescope. IRAC is a four-channel camera that obtains simultaneous broadband images at 3.6, 4.5, 5.8, and 8.0 μm. Two nearly adjacent 5.2m×5.2m fields of view in the focal plane are viewed by the four channels in pairs (3.6 and 5.8 μm 4.5 and 8 μm). All four detector arrays in the camera are 256×256 pixels in size, with the two shorter wavelength channels using InSb and the two longer wavelength channels using Si:As IBC detectors. IRAC is a powerful survey instrument because of its high sensitivity, large field of view, and four-color imaging. This paper summarizes the in-flight scientific, technical, and operational performance of IRAC.
The Astrophysical Journal Supplement Series
- Pub Date:
- September 2004
- Infrared: General;
- Instrumentation: Detectors;
- Space Vehicles: Instruments;
- 7 pages, 3 figures. Accepted for publication in the ApJS. A higher resolution version is at http://cfa-www.harvard.edu/irac/publications