The IRAS telescope

Details The IRAS telescope The IRAS telescope

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jbis...36...27i&link_type=abstract

British Interplanetary Society, Journal (Infra-Red Astronomical Satellite), vol. 36, Jan. 1983, p. 27-33. NASA-supported researc

Physics

Optics

Infrared Astronomy Satellite, Infrared Telescopes, Spaceborne Telescopes, Cryogenic Equipment, Focal Plane Devices, Onboard Data Processing, Optics, Performance Prediction, Satellite Configurations, Spacecraft Electronic Equipment, Spectral Sensitivity, Temperature Control

Scientific paper

The IRAS telescope is described in terms of its system configuration and physical characteristics, subsystem functions and descriptions, and performance characteristics. The mission and the configuration are reviewed briefly, and the major functional components of the telescope are described, including the focal plane assembly, the optics, the electronics, the cryogenics, and the thermal control. Exploded and cross-sectional views and block diagrams are presented for the telescope system configuration, focal plane assembly, infrared subarray module, optical subsystem, infrared channel data flow, and main cryogen dewar. The telescope physical characteristics are listed. The performance characteristics are listed and discussed, including the spectral response, sensitivity, optical quality, and photometric accuracy. Relative system spectral response curves for the infrared bands are shown.

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