C-type asteroid
The largest unequivocally C-type asteroid is 10 Hygiea, although the SMASS classification places the largest asteroid, 1 Ceres, here as well, because that scheme lacks a G-type.
2002 JE9
The asteroid has an estimated diameter of about based on an absolute magnitude of 21.3. is considered significant due to having previously passed closer to the Earth; on 11 April 1971, it passed Earth at a distance of . is one of the largest objects known to have passed inside the orbit of the moon. During the close approach in 1971 the asteroid reached about apparent magnitude 10, about the same brightness as Saturn's moon Iapetus.