5316 Filatov
5316 Filatov, provisional designation, is a carbonaceous asteroid and potentially slow rotator from the outer region of the asteroid belt, approximately 30 kilometers in diameter.
The asteroid was discovered on 21 October 1982, by Russian astronomer Lyudmila Karachkina at the Crimean Astrophysical Observatory in Nauchnij on the Crimean peninsula. It was later named for surgeon Vladimir Filatov.
Orbit and classification
Filatov orbits the Sun in the outer main-belt at a distance of 3.1–3.2 AU once every 5 years and 7 months. Its orbit has an eccentricity of 0.02 and an inclination of 15° with respect to the ecliptic. The body's observation arc begins at Nauchnij, 2 days after its official discovery observation.Physical characteristics
Potentially slow rotator
In November 2010, a rotational lightcurve of Filatov was obtained from photometric observations in the R-band at the Palomar Transient Factory in California. It gave an exceptionally long rotation period of 1061 hours with a brightness variation of 0.07 magnitude.However, the fragmentary lightcurve has received a low quality rating by the Collaborative Asteroid Lightcurve Link which means that the result could be completely wrong .