Flight calibration of the Mid-Infrared Spectrometer (MIRS) on board the IRTS

T. Onaka, D. Ishihara, T. Ootsubo, K. W. Chan, I. Yamamura, H. Murakami, T. Tanabé, T. L. Roellig, M. Cohen

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

The flight calibration of the Mid-Infrared Spectrometer (MIRS) on board the Infrared Telescope in Space (IRTS) is presented. The MIRS was a low-resolution spectrometer which covered 4.5 - 11.6 μm with an aperture of 8′ × 8′. Based on the spectra of infrared standard stars and Ceres we obtained an internal consistency of 5 - 10% in the absolute flux calibration. The largest uncertainty for point-like sources may come from the position of the object within the large aperture. As for the diffuse emission, we found good agreement with the COBE/DIRBE data to within a few MJy sr -1. Comparison with the ISO/SWS and PHT-S spectra is also presented.

Original languageEnglish
Pages (from-to)119-122
Number of pages4
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number481
Publication statusPublished - 2003 May 1
EventThe Calibration Legacy of the ISO Mission - madrid, Spain
Duration: 2001 Feb 52001 Feb 9

Keywords

  • Flight calibration
  • Infrared Telescope in Space
  • Mid-infrared spectrometer

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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