+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   6791 (1991 UC2) Classification: Main-belt Asteroid          SPK-ID: 2006791 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO229103 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1280679 n/a   a 2.4367456 n/a AU q 2.1246767 n/a AU i 1.45227 n/a deg node 238.89134 n/a deg peri 191.53588 n/a deg M 207.48432 n/a deg tp 2456989.1073920 (2014-Nov-27.60739200) n/a JED period 1389.3565639 3.80 n/a n/a d yr n 0.25911275 n/a deg/d Q 2.7488145 n/a AU   Orbit Determination Parameters    # obs. used (total)      742      first obs. used      1982-??-??      last obs. used      2012-04-30      # oppositions      18      planetary ephem.      DE403      condition code      0      fit RMS      0.58      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.492  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.1 mag n/a PDS3 (MPC 28115)   6791 (1991 UC2)          Discovered 1991-Oct-29 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1991 UC2 = 1983 QG1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 13:22 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin