It was discovered on 17 December 2001, by astronomers of Near-Earth Asteroid Tracking (NEAT) at the Palomar Observatory in California, United States.
[1] The body's observation arc begins with its first identification as 1997 WU46 at Lincoln Laboratory ETS in November 1997.
[2] Based on PanSTARRS photometric survey, Pupin is a carbonaceous C-type asteroid,[9] while the Erigone family's overall spectral type is that of a C- and X-type (CX).
He greatly improved long-distance telephone transmission and the sensitivity of X-ray detection, and worked for Serbian emigres.
The asteroid's name was suggested by the above-mentioned astronomers Vladimir Benishek and Frederick Pilcher.