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