+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08207900989345276 5.4685e-08   a 2.641008179603577 1.5492e-08 au q 2.424236843101205 1.3939e-07 au i 8.203009528470716 5.7708e-06 deg node 340.6169142426619 3.1927e-05 deg peri 182.0509057138466 4.4023e-05 deg M 88.26758423933001 2.9734e-05 deg tp 2458816.127962159661 (2019-Nov-28.62796216) 0.00012878 TDB period 1567.664220279701 4.29 1.3793e-05 3.776e-08 d yr n .2296410132622464 2.0205e-09 deg/d Q 2.857779516105949 1.6763e-08 au   Orbit Determination Parameters    # obs. used (total)      529      data-arc span      9578 days (26.22 yr)      first obs. used      1994-03-06      last obs. used      2020-05-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50621      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 17:57:52   Additional Information  Earth MOID = 1.43197 au   Jupiter MOID = 2.12235 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 15.43   n/a E2021B55   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 ] 2021-Mar-07 07:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin