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Middle Atmospheric High Resolution Spectrograph Investigation (MAHRSI)

NSSDCA ID: 1994-073B-02

Mission Name: CRISTA/SPAS
Principal Investigator:Dr. Robert Conway


The Middle Atmospheric High Resolution Spectrograph Investigation (MAHRSI) was mounted with the Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) on the German Shuttle Palette Satellite (SPAS) which was co-manifested with the third flight of the Atmospheric Laboratory for Applications and Science (ATLAS-3). MAHRSI was designed to measure the dayglow in the 1900-3200 Angstrom region and measured the concentrations of OH and NO in the mesosphere and themosphere (30-150 km altitude) to an accuracy of 2 km. The MAHRSI was developed by the U.S. Naval Research Laboratory (NRL).

Alternate Names


Funding Agencies

  • NASA-Office of Space Science Applications (United States)
  • US Naval Research Laboratory (United States)


  • Earth Science: Atmospheric Chemistry
  • Earth Science: Atmospheric Dynamics
  • Space Physics: Mesospheric Studies

Additional Information

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



NameRoleOriginal AffiliationE-mail
Dr. Robert ConwayPrincipal InvestigatorUS Naval Research Laboratory
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