Imaging Spectrometer Concepts For Next-Generation Planetary Missions

M. Herring; D. W. Juergens; P. N. Kupferman; G. Vane

doi:10.1117/12.943797

23 October 1984 Imaging Spectrometer Concepts For Next-Generation Planetary Missions

M. Herring, D. W. Juergens, P. N. Kupferman, G. Vane

Proceedings Volume 0493, Optical Platforms; (1984) https://doi.org/10.1117/12.943797
Event: The National Symposium and Workshop on Optical Platforms, 1984, Huntsville, United States

Abstract

In recent years there has been an increasing interest in the imaging spectrometer concept, in which imaging is accomplished in multiple, contiguous spectral bands at typical intervals of 5 to 20 nm. There are two implementations of this concept under consideration for upcoming planetary missions. One is the scanning, or "whisk-broom" approach, in which each picture element (pixel)of the scene is spectrally dispersed onto a linear array of detectors; the spatial information is provided by a scan mirror in combination with the vehicle motion. The second approach is the "push-broom" imager, in which a line of pixels from the scene is spectrally dispersed onto a two-dimensional (area-array) detector. In this approach, the scan mirror is eliminated, but the optics and focal plane are more complex. This paper will discuss the application of these emerging instrument concepts to the planetary program. Key issues are the trade-off between the two types of imaging spectrometer, the available data rate from a typical planetary mission, and the focal-plane cooling requirements. Specific straw-man conceptual designs for the Mars Geoscience/Climatoloqy Orbiter (MGCO) and the Mariner Mark II Comet Rendezvous/Asteroid Flyby (CRAF) missions will be discussed.

Citation Download Citation

M. Herring, D. W. Juergens, P. N. Kupferman, and G. Vane "Imaging Spectrometer Concepts For Next-Generation Planetary Missions", Proc. SPIE 0493, Optical Platforms, (23 October 1984); https://doi.org/10.1117/12.943797

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