The Space Infrared Telescope Facility (SIRTF) Project will perform infrared astronomical studies including imaging, photometry, and spectroscopy over the wavelength range of 1.8 μm to 700 μm. A complement of three Science Instruments designed to meet those objectives has been selected for an Instrument Definition Phase. The Instruments are:
A. A Multiband Imaging Photometer (MIPS), to be developed by the University of Arizona; Principal Investi-gator - Dr. George Rieke. The MIPS is baselined to image individual sources at the background limit and dif-fraction limit between 3 and 7 gm, to provide super resolution between 10 and 30 μm, to provide imaging, super resolution, and surveying between 30 and 200 gm, and to provide point source photometry, radiometry, and surveying at wavelengths longer than 200 μm. The MIPS will also provide polarimetry in selected bands. The MIPS will cover the wavelength interval from 3 to 700 μm.
B. An Infrared Array Camera (IRAC), to be developed by the Smithsonian Astrophysical Observatory; Principal Investigator - Dr. Giovanni G. Fazio. The IRAC is baselined for two-dimensional photometry, imaging and imaging polarimetry in either a wide field mode (5 arcmin square field of view) over the wavelength interval from 1.8 to 30 μm or a diffraction-limited (1.25 arcmin square field of view) mode, over the wavelength interval from 2.5 to 30 μm (with image quality at 1.8 μm no worse than at 2.5 μm) in a 1.25 X 1.25 arcmin field of view.