The likely elongated C-type asteroid was discovered on 29 February 1992, by the Uppsala–ESO Survey of Asteroids and Comets at ESO's La Silla astronomical observatory site in northern Chile.
[1] 1992 DT5 is an attributed member of the very compact Hoffmeister family (519), which, based upon its low albedo, was most likely formed from the breakup of a 50–100 kilometer-sized, carbon-rich parent body within the past several hundred million years.
[9]: 23 In September 2013, a rotational lightcurve for this asteroid was obtained from photometric observations in the R-band at the Palomar Transient Factory in California.
According to the Light Curve Data Base (LCDB),[3] it is the 8th slowest rotating minor planet known to exist.
Due to its high brightness amplitude of 0.80 magnitude, the body has a likely elongated shape (U=2).