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D.L. Domingue (Johns Hopkins Univeristy/Applied Physics Laboratory), B. Carcich (Cornell Univeristy), M. Robinson (Northwestern University), J. Joseph, P. Thomas, B. E. Clark (Cornell Univeristy)
Hapke modeling of 433 Eros' disk-integrated solar phase curve from ground-based telescopic observations and NEAR-Shoemaker spacecraft measurements show that Eros' surface photometric properties are typical of average S-class asteroids. Eros displays the same single particle scattering characteristics and porosity versus grain size relationships as typical S-asteroids. Eros' single scattering albedo is similar in value to that of 951 Gaspra. The physical albedo derived for Eros is higher than either 243 Ida or it's satellite Dactyl, but is equivalent to Gaspra's within the error bars. The phase integral and Bond albedo for Eros is significantly lower than for either Gaspra, Ida, or average S-asteroids. Results are commensurate with the photometric analysis of the NIS low-phase fly-by observations.