FOS spectra of Phobos, Deimos, 702 Alauda (a C-type asteroid) 1144 Oda (a
D-type asteroid) and Hya VB64 (a solar-type star) were obtained
( Zellner, 1994)over a wavelength range of 0.21 to 0.80
microns with spectral resolution ranging from 3
at 0.21
m to 200
at 0.8
m. There is considerable similarity between the spectra
of Phobos and Deimos and the redder D-type asteroids, which are rare in the
inner solar system. This could indicate that the martian satellites may have
formed in the outer asteroid belt and that their interiors may contain water
ice and primordial organic compounds.