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1150-2000A, 8-km Resolution Scanning Auroral Ionospheric Mapper

NSSDCA ID: 1983-063A-05

Mission Name: HILAT
Principal Investigators:Dr. Robert E. Huffman
Principal Investigators:Dr. Ching I. Meng


The Auroral/Ionospheric Mapper (AIM) instrument was intended to give simultaneous synoptic information through optical remote sensing of the ionosphere. The instrument consisted primarily of a vacuum-ultraviolet (VUV) imaging spectrometer which could operate in any of three modes. The most ambitious mode provided an image at any of six selectable wavelengths in the band 1150 to 2000 A, with a bandwidth of 30 A. Cross-track line scans of 134.4 deg by 1.5 deg with 336 pixels per line could yield nadir resolution of 3 by 13 km at 350-km altitude. The other two modes were fixed nadir-viewing ones with a field of view of 1.5 deg by 0.4 deg. One of these modes was a spectrophotometer mode in which a 30-A filter could be swept from 1150 to 2000 A. The other mode was a simple fixed-wavelength photometer mode. In addition to its VUV spectrophotometer, the AIM payload contained a pair of nadir-viewing visual-wavelength photometers. One operated at 3914 A and the other operated at 6300 A. For more details, see articles in Johns Hopkins APL Technical Digest, Volume 5.

Alternate Names

  • AIM


  • Space Physics: Ionospheric Studies

Additional Information

Questions and comments about this experiment can be directed to: Dr. H. Kent Hills



NameRoleOriginal AffiliationE-mail
Dr. Ching I. MengPrincipal InvestigatorApplied Physics
Dr. Robert E. HuffmanPrincipal InvestigatorPhillips Laboratory (nee USAF Geophysics Lab, nee Cambridge Labs)
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