 It was first observed on 15 September 1993, by astronomers at the Mauna Kea Observatory, one night after and the night before .On the discovery date of 15 September 1993 the object was estimated to have been from Earth with an uncertainty in the object's distance of ±200 billion km.Johnston's website generically lists it as a plutino, like Pluto, which are objects that stay in a orbital resonance with Neptune.