Composite KRFM-ISM spectrum of Phobos (0.315-3.1 microns)

Details Composite KRFM-ISM spectrum of Phobos (0.315-3.1 microns) Composite KRFM-ISM spectrum of Phobos (0.315-3.1 microns)

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12...13b&link_type=abstract

(Recent results on Mars and Venus; Proceedings of Symposium 3 and the Topical Meetings of the Interdisciplinary Scientific Commi

Computer Science

1

Carbonaceous Chondrites, Infrared Photometry, Infrared Radiometers, Infrared Spectrometers, Phobos, Satellite Surfaces, Spectral Reflectance, Visible Spectrum, Albedo, Brightness Distribution, Meteoritic Composition, Spacecraft Instruments

Scientific paper

The spectrum of a portion of the Phobos surface was measured at the same points by two instruments (KRFM and ISM) on board the Phobos-2 mission in two ranges: 0.315-0.6 and 0.8-3.1 microns. An example of a spectrum based on data from both experiments obtained in the same locations is presented and discussed. It is substantially different from a previously published 'average' spectrum of Phobos Pang et al. (1978). There is no direct analogue to the presented spectrum among the known reflectivity spectra of meteorites and asteroids. The spectral reflectivity of the observed part of Phobos is like carbonaceous C1-C2 chondrites for the range below 0.6 micron, but not above 0.8 micron, where it shows a rise of reflectivity with wavelength even stronger than in the case of CM chondrites. No traces of the hydration band near 3 microns are visible. The nature of the surface layer is probably complicated, and it consists of inhomogeneous material.

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