Observations by the Infrared Astronomical Satellite have since shown that it has a diameter of NUMBER@1 ± NUMBER@2 km , with an absolute magnitude of NUMBER@3 and an albedo of NUMBER@4 ± NUMBER@5 .

Observations by the Infrared Astronomical Satellite have since shown that it has a diameter of NUMBER@1 ± NUMBER@2 km , with an absolute magnitude of NUMBER@3 and an albedo -LRB- the extent of which it reflects light -RRB- of NUMBER@4 ± NUMBER@5 .
