Sinope has an estimated diameter of 38 km ( assuming an albedo of 0.04 ) The moon is red unlike Pasiphae which is gray .
Sinope has an estimated diameter of 38 km ( assuming an albedo of 0.04 ) The satellite is red ( color indices B-V = 0.84 , R-V = 0.46 ) . unlike Pasiphae which is gray .