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Proceedings Paper

Two-coordinate pointing and tracking system for an infrared Fourier-transform spectrometer
Author(s): Alexey Shakun; Andrey Kungurov; Oleg Sazonov; Igor Stupin; Gabriele Arnold; Alexey Grigoriev; Oleg Korablev
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Paper Abstract

We describe a 1-inch aperture pointing system realized with a rope transmission driven by geared stepper motors for operation at the surface of Mars. The system is intended to serve in the Fourier-transform spectrometer to observe both the sun through the atmosphere and the thermal emission of the atmosphere. The scanner covers a full 2π field of view (the upper hemisphere). The accuracy of 0.1 mrad (~21 arcsec) for the sun tracking is achieved using an automatic control system with an IR array sensor (3232) in the loop. The optics of the pointing system consists of three flat mirrors and a germanium inlet window. The mass of the subsystem does not exceed 0.8 kg. The design accounts for the necessity of dust protection in the Martian environment. The effect of a finite accuracy of the pointing and tracking on the instrument signal to noise ratio is modeled.

Paper Details

Date Published: 9 September 2019
PDF: 6 pages
Proc. SPIE 11128, Infrared Remote Sensing and Instrumentation XXVII, 111280H (9 September 2019); doi: 10.1117/12.2535444
Show Author Affiliations
Alexey Shakun, Space Research Institute (Russian Federation)
Andrey Kungurov, Space Research Institute (Russian Federation)
Oleg Sazonov, Space Research Institute (Russian Federation)
Igor Stupin, Space Research Institute (Russian Federation)
Gabriele Arnold, German Aerospace Ctr. DLR (Germany)
Alexey Grigoriev, Space Research Institute (Russian Federation)
Oleg Korablev, Space Research Institute (Russian Federation)

Published in SPIE Proceedings Vol. 11128:
Infrared Remote Sensing and Instrumentation XXVII
Marija Strojnik; Gabriele E. Arnold, Editor(s)

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