[4] It orbits the Sun in the inner asteroid belt at a distance of 2.3–2.6 AU once every 3 years and 10 months (1,398 days).
[8] Guidotti has been characterized as a carbonaceous C-type asteroid by Pan-STARRS photometric survey,[7] as well as by SDSS-MFB (Masi Foglia Bus).
[3] In March 2008, a rotational lightcurve of Guidotti was obtained from photometric observations by Slovak astronomers Adrian Galad and Leonard Kornoš.
Analysis of the fragmentary lightcurve gave a rotation period of 2.6 hours with a brightness amplitude of 0.3 magnitude (U=1).
[3] Based on a generic magnitude-to-diameter conversion, using a typical albedo for carbonaceous asteroids of 0.06, Guidotti measures 6.9 kilometres in diameter.