It was discovered on 24 January 1982, by American astronomer Edward Bowell at the Anderson Mesa Station near Flagstaff, Arizona.
[7]: 23 According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Plaskett measures 10.224 kilometers in diameter and its surface has an albedo of 0.273.
[5] As of 2017, no rotational lightcurve of Plaskett has been obtained from photometric observations.
The body's rotation period, shape and poles remain unknown.
[2][3] The official naming citation was published by the Minor Planet Center on 10 September 1984 (M.P.C.