[9] The S-type asteroid orbits the Sun in the central main-belt at a distance of 1.9–3.2 AU once every 4 years and 2 months (1,518 days).
[9] American astronomer Richard Binzel obtained the first rotational lightcurve of Brenda in June 1984.
[7] In June 2006, a period of 23±1 with an amplitude of 0.26 magnitude was derived from photometric observations made by French amateur astronomer René Roy (U=2).
[8] According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Brenda measures between 26.27 and 29.64 kilometers in diameter, and its surface has an albedo between 0.115 and 0.133.
[4][5][6] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1078 and a diameter of 29.59 kilometers with an absolute magnitude of 10.68.