Galileo photometry of asteroid 951 Gaspra

Authors :: Helfenstein, P.
Veverka, J.
Thomas, P.C.
Simonelli, D.P.
Lee, P.
Klaasen, K.
Johnson, T. V.
Breneman, H.
Head, J.W.
Murchie S.
Fanale, F.
Robinson, M.
Clark, B.
Granahan, J.
Garbeil, H.
McEwen, A.S.
Kirk, R.L.
Davies, M.
Neukum, G.
Mottola, S.
Wagner, R.
Belton, M.
Chapman, C.
Pilcher, Carl
Source :: Icarus. Jan, 1994, Vol. 107 Issue 1, p37, 24 p.
Publication Year :: 1994
Abstract: Photometric studies of the images of asteroid 951 Gaspra, taken by the Galileo space craft during the October 1991 flyby, reveal the particle-phase function characteristics and microscopic texture of the asteroid. The texture and phase function characteristics are similar to those of other asteroids and the moon. The particle scattering albedo is 0.36 and the macroscopic surface roughness parameter is 29 degrees.