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Mariner 9 television observations of Phobos and Deimos. II. (1973)

Sagan, C. ; Hartmann, W. K. ; Born, G. H. ; [et al.]

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Publication Date: 2019-06-27

Description: Analyses of the Mariner 9 pictures of the Martian satellites have yielded much new information: improved ephemerides, estimates of their principal axes, information about the texture of their surfaces, and estimates of the structural strength of their interiors. Both satellites are found to be in synchronous rotation, as was expected from tidal theory. A close examination of the preorbital satellite pictures has failed to show any unknown satellite. The photometric behavior of Phobos and Deimos indicates that they have intricate surface layers consistent with the presence of a regolith. Morphological features on Phobos and the expected collisional history of both satellites imply that both are made of well-consolidated material.

Keywords: SPACE SCIENCES

Type: Journal of Geophysical Research; 78; July 10

Format: text

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