Imaging observation of the Earth's mesosphere, thermosphere and ionosphere by VISI of ISS-IMAP on the International Space Station

Takeshi Sakanoi, Yusuke Akiya, Atsushi Yamazaki, Yuichi Otsuka, Akinori Saito, Ichiro Yoshikawa

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We present the scientific targets, instrumental design, principle of measurement, and development of the Visible and near-Infrared Spectral Imager (VISI) which will be launched onto International Space Station (ISS) in January 2012. VISI is equipped with fast optics including a grism, and a high-sensitivity CCD to obtain airglow emissions at wavelengths of O (630 nm), OH Meinel band (650 nm) and O 2 (0-0) atmospheric band (762 nm). VISI has two field-of-views (FOVs), 45 degrees forward and 45 degrees backward to nadir, to subtract background contaminations. The data acquisition of VISI will be continuously performed with short exposure cycle less than several seconds when ISS is orbiting in the night side of the earth, and then provide the seamless line scanning images of the airglows with a spatial resolution better than 50 km. After manufacturing VISI, we checked its performance though optical and electric function tests as well as environmental tests that are necessary to be launched.

Original languageEnglish
Pages (from-to)983-988
Number of pages6
JournalIEEJ Transactions on Fundamentals and Materials
Volume131
Issue number12
DOIs
Publication statusPublished - 2011 Dec 1

Keywords

  • Airglow
  • CCD
  • International Space Station
  • Ionosphere
  • Optics
  • Thermosphere

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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