Asteroid 19651 1999 RC112 is a main belt asteroid with an estimated diameter of 10 km. It was discovered on 9 September, 1999 by LINEAR at Socorro. The semi-major axis is 2.36 AU, the eccentricity is 0.155 and the inclination is 14.64 degrees.
This asteroid was observed on 4 nights Between March and May 2006. Analysis of the data yielded a single maximum lightcurve with a period of 5.98 hours with a large amplitude. The true period is likely to be about twice this value.