+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120342 (2004 RU113) Classification: Main-belt Asteroid          SPK-ID: 2120342 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08214454926978831 5.4905e-08   a 2.640571144389565 1.5898e-08 au q 2.423662617918875 1.4045e-07 au i 8.203047473137072 5.9939e-06 deg node 340.6214347079608 3.2259e-05 deg peri 181.9029431132318 4.4469e-05 deg M 42.46342601984128 3.0144e-05 deg tp 2458815.633692571937 (2019-Nov-28.13369257) 0.00013085 TDB period 1567.275109714552 4.29 1.4154e-05 3.875e-08 d yr n .2296980267016215 2.0744e-09 deg/d Q 2.857479670860255 1.7204e-08 au   Orbit Determination Parameters    # obs. used (total)      511      data-arc span      9550 days (26.15 yr)      first obs. used      1994-03-06      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51166      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:36:49   Additional Information  Earth MOID = 1.4317 au   Jupiter MOID = 2.12364 au   T_jup = 3.376  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.4   n/a MPO426759   120342 (2004 RU113)          Discovered 2004-Sep-07 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-31 14:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin