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Phobos: Spectrophotometry between 0.3 and 0.6 μm and IR-radiometry

Ksanfomality, L. and Murchie, S. and Britt, D. and Duxbury, T. and Fisher, P. and Goroshkova, N. and Head, J. and Kuhrt, E. and Moroz, V. and Murray, B. and Nikitin, G. and Petrova, E. and Pieters, C and Soufflot, A. and Zharkov, A. and Zhukov, B. (1991) Phobos: Spectrophotometry between 0.3 and 0.6 μm and IR-radiometry. Planetary and Space Science, 39 (1-2). pp. 311-326. ISSN 0032-0633. http://resolver.caltech.edu/CaltechAUTHORS:20140410-085823997

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Abstract

A 0.3–0.6 (μm UV-visible spectrophotometer and a 5–50 μm radiometer in the KRFM experiment on Phobos 2 measured two groundtracks in the equatorial region of Phobos. Preliminary results indicate that three surface units can be recognized on the basis of differing UV-visible spectral reflectance properties. One of the units is most comparable spectrally to optically darkened mafic material, and a second is comparable either to anhydrous carbonaceous chondrite or to blackened mafic material. Spectral properties of the third unit do not resemble those of known meteorite types. Brightness temperatures measured by the radiometer are consistent with a typlcal surface thermal inertia of 1-3 x 10^(-3) cal/(cm^2) deg S^(1/2), as suggested by previous investigations, implying a lunar-like regolith texture. At least one area of possibly higher thermal inertia has been tentatively identified, where a large degraded crater is crossed by several grooves. These results indicate significant lateral heterogeneity in the optical and textural properties of Phobos's surface.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0032-0633(91)90152-ZDOIArticle
http://www.sciencedirect.com/science/article/pii/003206339190152ZPublisherArticle
Additional Information:© 1991 Pergamon Press. Camera-ready copy received 15 May 1990. Thanks to John Mustard and Paul Helfenstein for helpful comments, and to Peter Neivert for his photographic work.
Record Number:CaltechAUTHORS:20140410-085823997
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140410-085823997
Official Citation:L. Ksanfomality, S. Murchie, D. Britt, T. Duxbury, P. Fisher, N. Goroshkova, J. Head, E. Kuhrt, V. Moroz, B. Murray, G. Nikitin, E. Petrova, C. Pieters, A. Soufflot, A. Zharkov, B. Zhukov, Phobos: Spectrophotometry between 0.3 and 0.6 μm and IR-radiometry, Planetary and Space Science, Volume 39, Issues 1–2, January–February 1991, Pages 311-326, ISSN 0032-0633, http://dx.doi.org/10.1016/0032-0633(91)90152-Z. (http://www.sciencedirect.com/science/article/pii/003206339190152Z)
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ID Code:44841
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:10 Apr 2014 16:31
Last Modified:10 Apr 2014 16:31

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