Type: PeriodicPerihelion date: 25 July 2021Perihelion distance (q): 1.9Aphelion distance (Q) : 7.9Period (years): 10.9Eccentricity (e): 0.61Inclination (i): 21.1JPL orbit diagramCOBS lightcurve241P/LINEAR = 1999 U3 = 2010 P2R. Huber reported the discovery by LINEAR of an 18th mag comet on 30 October 1999. Additional observations were reported following posting on the NEO Confirmation Page. It was past perihelion and faded from 16th magnitude.H. Sato, Tokyo, recovered P/1999 U3 on 12 August 2010 on CCD images obtained remotely with a 0.25-m f/3.4 reflector located at the RAS Observatory near Mayhill, NM, U.S.A when it showed a 15" coma. The indicated correction to the prediction by S. Nakano on MPC 59600 is Delta(T) = -0.22 day.Observations (VEMag = visual equivalent magnitude)Date10x10 magErrorVEmagComa '