The asteroid was discovered on 24 November 1973, by Swiss astronomer Paul Wild at the Zimmerwald Observatory near Bern, Switzerland.
[2] Bistro orbits the Sun in the inner main-belt at a distance of 2.2–2.7 AU once every 3 years and 10 months (1,388 days).
[1] In April 2013, a rotational lightcurve of Bistro was obtained from photometric observations at the Bassano Bresciano Observatory in Italy.
Lightcurve analysis gave a rotation period of 17.051 hours with a brightness variation of 0.12 magnitude (U=2-).
[4][5][6][7][8][9] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1739 and a diameter of 12.69 kilometers based on an absolute magnitude of 12.0.