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The IRTS (Infrared Telescope in Space) Mission
Abstract
The Japanese satellite-borne infrared telescope, the Infrared Telescope in Space (IRTS), has completed a successful survey of a portion of the infrared sky. The IRTS consists of a 15 cm telescope cooled with superfluid liquid helium, and is installed on board the Space Flyer Unit (SFU) spacecraft. The SFU was launched on 1995 March 18 UT. The sky survey by the IRTS started on March 29 UT, and was completed on April 25 UT after exhausting its liquid helium. The cryogenic system operated as designed, and maintained the telescope and the focal-plane instruments at a stable temperature of 1.9 K for 38 days. The four focal-plane instruments, which together covered almost the entire infrared wavelength range, observed a sky area of about 2700 deg2 and returned a wealth of new data on a variety of objects, including the zodiacal light, interstellar gas and dust, near-infrared cosmic background light and point sources.
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The optical components used in infrared instruments require a cooling and preheating process.
“The optical components used in infrared instruments [66,67] require a cooling and preheating process.”
From Thermal Radiation Testing Methods at Cryogenic Temperatures: A Review (2026) · cites this paper as [66]
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Thermal Radiation Testing Methods at Cryogenic Temperatures: A Review
Li, B., & Shen, F. (2026) · Cryo · doi:10.3390/cryo2010004 · Cited by 1
Metadata
- Authors
- Murakami, H., Freund, M. M., Ganga, K., Guo, H., Hirao, T., Hiromoto, N., Kawada, M., Lange, A. E., Makiuti, S., Matsuhara, H., Matsumoto, T., Matsuura, S., Murakami, M., Nakagawa, T., Narita, M., Noda, M., Okuda, H., Okumura, K., Onaka, T., Roellig, T. L., Sato, S., Shibai, H., Smith, B. J., Tanabé, T., Tanaka, M., Watabe, T., Yamamura, I., & Yuen, L.
- Affiliations
- 1The Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229 E-mail (UM): hmurakam@astro.isas.ac.jp
- 2NASA Ames Research Center, MS245-6, Moffet Field, CA 94035, USA
- 3Observational Cosmology, California Institute of Technology, 1201 E.California Blvd., Pasadena, CA 91125, USA
- 4Beijing Observatory, Beijing 100080, China
- 5Communications Research Laboratory, Nukui-Kitamachi 4-2-1, Koganei, Tokyo 184
- 6Department of Astrophysics, School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464
- 7Kansai Advanced Research Center, Communications Research Laboratory, 588-2 Iwaoka, Nishi-ku, Kobe 651-24
- 8Institute of Engineering Mechanics, University of Tsukuba, Tsukuba, Ibaraki 305
- 9Nagoya Municipal Industrial Research Institute, Rokuban 3-4-41, Atsuta-ku, Nagoya 456
- 10Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113
- 11The Infrared Processing and Analysis Center, MS 100-22, California Institute of Technology, Pasadena, CA91125, U.S.A.
- 12Institute of Astronomy, Faculty of Science, The University of Tokyo, Bunkyo-ku, Tokyo 181
- Venue
- Publications of the Astronomical Society of Japan
- Publisher
- Oxford University Press (OUP)
- Published
- 1996-10-01
- Volume
- 48
- Issue
- 5
- Pages
- L41-L46
- ISSN
- 0004-6264
- 2053-051X
- Cited by
- 71
- References
- 0
- Language
- en
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