Ultraviolet imaging spectrometer (UVS) experiment on board the NOZOMI spacecraft: Instrumentation and initial results

M. Taguchi, H. Fukunishi, S. Watanabe, S. Okano, Y. Takahashi, T. D. Kawahara

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

An ultraviolet imaging spectrometer (UVS) on board the PLANET-B (NOZOMI) spacecraft has been developed. The UVS instrument consists of a grating spectrometer (UVS-G), an absorption cell photometer (UVS-P) and an electronics unit (UVS-E). The UVS-G features a flat-field type spectrometer measuring emissions in the FUV and MUV range between 110 nm and 310 nm with a spectral resolution of 2-3 nm. The UVS-P is a photometer separately detecting hydrogen (H) and deuterium (D) Lyman α emissions by the absorption cell technique. They take images using the spin and orbital motion of the spacecraft. The major scientific objectives of the UVS experiment at Mars and the characteristics of the UVS are described. The MUV spectra of geocoronal and interplanetary Lyman α emissions and lunar images taken at wavelength of hydrogen Lyman a and the background at 170 nm are presented as representative examples of the UVS observations during the Earth orbiting phase and the Mars transfer phase.

Original languageEnglish
Pages (from-to)49-60
Number of pages12
Journalearth, planets and space
Volume52
Issue number1
DOIs
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Geology
  • Space and Planetary Science

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