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Visible and Thermal Infrared Radiometer (VTIR)

NSSDCA ID: 1990-013A-02

Mission Name: MOS-1B
Principal Investigator:


The Visible and Thermal Infrared Radiometer (VTIR) was a mechanical scanning radiometer with four spectral bands designed for providing information for snowpack mapping, water vapor distribution, cloud cover mapping, ocean currents, sea surface temperature, and sea ice dynamics. The sensor is a mechanical rotating mirror (at 7.3 revs/sec) with Ritchey-Chretien optics. The visible bands used silicon photodiodes and the infrared bands used mercury-cadmium-telluride elements. The spectral bands used are: (1) VIS (0.5-0.7 micrometer), (2) TIR (6.0-7.0 micrometer), (3) TIR (10.5-11.5 micrometer), and (4) TIR (11.5-12.5 micrometer). The resolution of band 1 (VIS) is 0.9 km and for bands 2-4 it is 2.7 km with a radiometric resolution of 0.5 degrees K. The swath width for all bands is 1500 km with a data rate of 0.8 Mbps.

Alternate Names

  • VTIR


  • Earth Science: Atmospheric Dynamics
  • Earth Science: Land Surface Processes
  • Earth Science: Physical Oceanography

Additional Information

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



NameRoleOriginal AffiliationE-mail
Principal InvestigatorNational Space Development Agency of Japan
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