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Applied Optics

Applied Optics


  • Vol. 11, Iss. 11 — Nov. 1, 1972
  • pp: 2625–2634

Mariner 9 Michelson Interferometer

R. Hanel, B. Schlachman, E. Breihan, R. Bywaters, F. Chapman, M. Rhodes, D. Rodgers, and D. Vanous  »View Author Affiliations

Applied Optics, Vol. 11, Issue 11, pp. 2625-2634 (1972)

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The Michelson interferometer on Mariner 9 measures the thermal emission spectrum of Mars between 200 cm−1 and 2000 cm−1 (between 5 μm and 50 μm) with a spectral resolution of 2.4 cm−1 in the apodized mode. A noise equivalent radiance of 0.5 × 10−7 W cm−2 sr−1/cm−1 is deduced from data recorded in orbit around Mars. The Mariner interferometer deviates in design from the Nimbus 3 and 4 interferometers in several areas, notably, by a cesium iodide beam splitter and certain aspects of the digital information processing. Special attention has been given to the problem of external vibration. The instrument performance is demonstrated by calibration data and samples of Mars spectra.

© 1972 Optical Society of America

Original Manuscript: June 8, 1972
Published: November 1, 1972

R. Hanel, B. Schlachman, E. Breihan, R. Bywaters, F. Chapman, M. Rhodes, D. Rodgers, and D. Vanous, "Mariner 9 Michelson Interferometer," Appl. Opt. 11, 2625-2634 (1972)

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