Composition of Near-Earth Asteroid (4179) Toutatis
  Surface composition of near-Earth asteroid (4179) Toutatis is consistent with an undifferentiated L-chondrite composition. This is inconsistent with early observations that suggested high pyroxene iron content and a differentiated body. 
Vishnu Reddy, Juan Andreas Sanchez, Michael Gaffey, Paul Abell,   Lucille Le Corre, Paul Hardersen
astro-ph.EP physics.geo-ph physics.space-ph