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Solar Occultation For Ice Experiment (SOFIE)

NSSDCA ID: 2007-015A-01

Mission Name: Aeronomy of Ice in the Mesosphere
Principal Investigator:Mr. Mark Hervig


The solar occultation for ice experiment (SOFIE) is an infrared radiometer experiment that uses a differential absorption technique in solar occultation (sunrise and sunset). SOFIE measures absorption of sunlight in eight spectral regions between 0.25 and 5.3 mm. The specific wavelengths are chosen to provide altitude profiles of temperature, polar mesospheric clouds (PMCs), water vapor, Carbon Dioxide, Methane, Nitric Oxide, Ozone and aerosol absorption. The SOFIE instrument is designed, fabricated, tested, and integrated by the Space Dynamics Laboratory at Utah State University (SDL). The instrument is of TIMED/SABER heritage using the same actuators for the aperture cover, similar design for the telescope, radiator, tuning fork chopper, and electronics.

Alternate Names



  • 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
Mr. Mark HervigPrincipal Investigator
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