There are two Eros packages, each containing a normal map and cmod mesh
tessellated to 1 vertex per degree.

eros-nm-2k.zip: 2048x1024 normal map
eros-nm-2880.zip: full-resolution 2880x1440 normal map; requires a graphics
  card d that can handle non-pow-of-two textures (e.g.. GeForce6 & 7 series)

eros-720.zip: More detailed Eros model, with 2 vertices per degree.

eros-1440.zip: Extremely detailed Eros model, with 4 vertices per degree.
  No tangents or texture coordinates (with this much detail in the mesh, you
  hardly need them.)