Application of the Langley plot for calibration of sun sensors for th Halogen Occultation Experiment (HALOE)

Alvah S. Moore, L. E. Mauldin, John A Reagan, Charles W. Stump, Milton G. Fabert

Research output: Contribution to journalArticle

2 Scopus citations


The calibration of the Halogen Occultation Experiment (HALOE) sun sensor is described. This system consists of two energy-balancing silicon detectors to provide coarse azimuth and elevation control signals and a silicon photodiode array to provide top and bottom solar edge data for fine elevation control. All three detectors were calibrated on a mountaintop, using the Langley plot technique. The conventional Langley plot technique was modified to allow calibration of the two coarse detectors, which operate wideband. A description of the test setup is given. The HALOE instrument is a gas correlation radiometer that is now being developed for the Upper Atmospheric Research Satellite.

Original languageEnglish (US)
Pages (from-to)180-187
Number of pages8
JournalOptical Engineering
Issue number2
Publication statusPublished - Feb 1989
Externally publishedYes


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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