An occultation on 19 March 1981 suggested a diameter of 219±25 km.[10] Observations of an occultation on 14 October 1999, using four well-placed chords, indicate an ellipsoid of 278×142 km and that 48 Doris is an extremely irregularly shaped object.[5]
Doris will pass within 0.019 AU of Pallas in June 2132.[11]
^ abcdeP. Vernazza et al. (2021) VLT/SPHERE imaging survey of the largest main-belt asteroids: Final results and synthesis. Astronomy & Astrophysics 54, A56