[2][5] Lacroute orbits the Sun in the outer main-belt at a distance of 2.5–3.7 AU once every 5 years and 6 months (1,996 days).
[5] According to the surveys carried out by the Infrared Astronomical Satellite (IRAS) and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Lacroute measures 16.9 and 18.2 kilometers in diameter, and its surface has an albedo of 0.049 and 0.074, respectively.
[3][4] As of 2016, the body's spectral type, as well as its rotation period and shape remain unknown.
[1][6] This minor planet was named in honor of French astronomer Pierre Lacroute (1906–1993), a known astrometrist, president of IAU's Commission 24 in the 1970s, and director of the Observatory of Strasbourg, instrumental in the establishment of the Stellar Data Center (also see SIMBAD).
[2] Lacroute also made an independent reduction of the astrometric star catalogue AGK3, using a technique involving overlapping photographic plates.