The Temperature Regime of the Surface Layer of the Phobos Regolith in the Region of the Potential Fobos-Grunt Space Station Landing Site

Details The Temperature Regime of the Surface Layer of the Phobos Regolith in the Region of the Potential Fobos-Grunt Space Station Landing Site The Temperature Regime of the Surface Layer of the Phobos Regolith in the Region of the Potential Fobos-Grunt Space Station Landing Site

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003sosyr..37..480k&link_type=abstract

Solar System Research, v. 37, Issue 6, p. 480-488 (2003).

Physics

1

Scientific paper

Because of the absence of the atmosphere, the short duration of the Phobos day (7.7 hours), and the presence of a highly porous and fine-grained soil on the Phobos surface, all components of the future Russian Fobos-Grunt lander will operate under frequent and sharp temperature changes: from positive to extremely low negative temperatures. As a consequence, information about the temperature regime directly on the surface of the Martian satellite and in the near-surface layer appears to be extremely important. The proposed publication contains both the information about the thermophysical properties of the surface regolith of Phobos, derived from observations made with the Mariner 9 orbiter, the Viking orbiter, the Fobos-2 spacecraft, and the Mars Global Surveyor orbiter, and the results of the numerical modeling of the thermal regime of the surface regolith layer (on diurnal and seasonal time scales) in the area of the potential Fobos-Grunt landing site. We performed this modeling by taking into account the seasons on Mars and the effects due to the eclipse of Phobos by Mars.

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