[2] Pickeringia is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.
[11] The result supersedes observations taken during the 1990s by European astronomers using the ESO 0.5-metre telescope at La Silla Observatory, Chile, which gave a period of 13 hours with an amplitude of 0.40 magnitude (U=2).
[15] as well as a period determination by French amateur astronomer Laurent Bernasconi in December 2004, which gave 13.17±0.05 h and an amplitude of 0.20±0.01 magnitude (U=2).
[17][18] The online version of the Database of Asteroid Models from Inversion Techniques gives two poles at (103°, 68.0°) and (282°, 35.0°) with a nearly identical sidereal period.
[7][8][9] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0423 and a diameter of 89.19 kilometers based on an absolute magnitude of 9.3.