Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981tecn....9...27y&link_type=abstract
Technical News, vol. 9, Sept. 1981, p. 27-31.
Astronomy and Astrophysics
Astronomy
Infrared Telescopes, Mission Planning, Space Infrared Telescope Facility, Space Shuttle Orbiters, Spaceborne Telescopes, Spacelab Payloads, Beryllium, Cryogenic Cooling, Field Of View, Image Motion Compensation, Infrared Astronomy Satellite, Mirrors, Polishing, Technology Transfer, Vacuum Tests
Scientific paper
The Shuttle Infrared Telescope Facility (SIRTF), which will operate aboard the Space Shuttle Orbiter on missions lasting from 7 to 14 days, is described with emphasis on the extent to which cryogenically cooled telescope technologies developed for the Infrared Astronomy Satellite will be directly applicable to SIRTF system. Science instruments carried by the SIRTF will be provided with (1) a spectral range of 1-1000 microns, (2) a 3-arcsec diffraction limit, (3) a field-of-view of 7 arcmin, (4) square wave space chopping from 0 to 20 Hz, and (5) image motion compensation to 0.25 arcsec. Attention is given the simplification of science instrument interfaces, the computer-controlled polishing of the beryllium mirrors, and cryogenic/vacuum testing of IR telescope optics.
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