 There are no prominent albedo or color patterns, although a subtle color variation is seen across the surface.Gaspra's surface lacks unambiguous craters of a size comparable to its radius, like those seen for example on 253 Mathilde.A probable reason is that the collision that produced the Flora family and Gaspra was relatively recent on an astronomical timescale, so that Gaspra has not yet had the opportunity to acquire many large craters since.