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Infrared Telescope in Space (IRTS)

NSSDCA ID: 1995-011A-01

Mission Name: SFU


IRTS was Japan's first orbiting telescope dedicated to infrared observations (1 - 1000 micron range) of the interstellar medium, late type stars and interplanetary dust. IRTS instrumentation was attached to a multi-purpose Space Flyer Unit (SFU). The four primary science instruments were the Near Infrared Spectrometer (NIRS), the Mid Infrared Spectrometer (MIRS), the Far-Infrared Line Mapper (FILM), and the Far-Infrared Photometer (FIRP). All instruments were located at the focal plane of a 15-cm aperture telescope. Approximately 7 percent of the sky was surveyed during a four-week period. IRTS was recovered with the SFU by the Space Shuttle STS-72 on January 13, 1996.

Alternate Names

  • IRTS

Funding Agency

  • Institute of Space and Aeronautical Science, U of Tokyo (Japan)


  • Astronomy: Infrared

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office



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