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Special Sensor Ultraviolet Limb Imager (SSULI)

NSSDCA ID: 2003-048A-09

Mission Name: DMSP 5D-3/F16


The Special Sensor Ultraviolet Limb Imager (SSULI) measures vertical profiles of the natural airglow radiation from atoms, molecules and ions in the upper atmosphere and ionosphere by viewing the Earth's limb at a tangent altitude of approximately 50 km to 750 km. Measurements are made from the extreme ultraviolet (EUV) to the far ultraviolet (FUV) over the wavelength range of 80 nm to 170 nm, with 1.8 nm resolution. The SSULI instrument was developed by the Naval Research Laboratory (NRL) for the Air Force Defense Meteorological Satellite Program (DMSP) . A SSULI prototype, the Low Resolution Airglow and Auroral Spectrograph (LORAAS), was launched onboard the Advanced Research and Global Observation Satellite (ARGOS) on February 23, 1999. More information can be found on the NRL SSULI site at

Alternate Names

  • DMSP5D-3/F16/SpecialSensorUltravioletLimbImager_SSULI_

Funding Agency

  • Department of Defense (United States)


  • Space Physics: Zodiacal Light/Interplanet Dust
  • Space Physics: Thermospheric Studies

Additional Information

Questions and comments about this experiment can be directed to: Dr. Dieter K. Bilitza



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