Sensitive Observations With The Spacelab 2 Infrared Telescope

E. T. Young; G. H. Rieke; T. N. Gautier; W. F. Hoffmann; F. J. Low; W. Poteet; G. G. Fazio; D. Koch; W. A. Traub; E. W. Urban

doi:10.1117/12.934158

9 August 1983 Sensitive Observations With The Spacelab 2 Infrared Telescope

E. T. Young, G. H. Rieke, T. N. Gautier, W. F. Hoffmann, F. J. Low, W. Poteet, G. G. Fazio, D. Koch, W. A. Traub, E. W. Urban

Author Affiliations +

Proceedings Volume 0363, Advanced Remote Sensing; (1983) https://doi.org/10.1117/12.934158
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

Abstract

The small helium-cooled infrared telescope (Spacelab IRT) is a multiband instrument capable of highly sensitive observations from space. The experiment consists of a cryogenically cooled, very well baffled telescope with a ten channel focal plane array. During the Spacelab 2 flight of the Space Shuttle, this instrument will make observations between 5 and 120 μm wavelength that will be background limited by the expected zodiacal emission. Design considerations necessitated by this level of performance are discussed in this paper. In particular, the operation of a very sensitive focal plane array in the space environment is described. The Spacelab IRT will be used to map the extended, low-surface brightness celestial emission. During the seven day length of the mission better than 70% sky coverage is expected. The instrument will also be used to measure the infrared contamination environment of the Space Shuttle. This information will be important in the development of the next generation of infrared astronomical instruments. The performance of the Spacelab IRT, in particular its sensitivity to the contamination environment is detailed.

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E. T. Young, G. H. Rieke, T. N. Gautier, W. F. Hoffmann, F. J. Low, W. Poteet, G. G. Fazio, D. Koch, W. A. Traub, and E. W. Urban "Sensitive Observations With The Spacelab 2 Infrared Telescope", Proc. SPIE 0363, Advanced Remote Sensing, (9 August 1983); https://doi.org/10.1117/12.934158

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KEYWORDS

Space telescopes

Telescopes

Infrared radiation

Sensors

Staring arrays

Helium

Contamination

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