Input (grade 5): Observations by the Infrared Astronomical Satellite have since shown that it has a diameter of 33.2 Â 1.3 km, with an absolute magnitude of 11.20 and an albedo of 0.053 Â 0.004.
Output (grade 5): Observations by the Infrared Astronomical Satellite have since shown that it has a diameter of 33.2 Â 1.3 km, with an absolute magnitude of 11.20 and an albedo (the extent to which it reflects light) of 0.053 Â 0.004.