+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70391 (1999 RP230) Classification: Main-belt Asteroid          SPK-ID: 2070391 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1862620161602375 6.6752e-08   a 2.543951127579285 1.1885e-08 au q 2.070109661543257 1.7335e-07 au i 13.07978705405761 6.6106e-06 deg node 151.1796052472809 1.6611e-05 deg peri 154.6827851305953 2.0448e-05 deg M 73.09038492381875 1.0328e-05 deg tp 2458699.601986377789 (2019-Aug-04.10198638) 4.2079e-05 TDB period 1482.045620869287 4.06 1.0386e-05 2.844e-08 d yr n .2429075022595078 1.7022e-09 deg/d Q 3.017792593615312 1.4099e-08 au   Orbit Determination Parameters    # obs. used (total)      648      data-arc span      8241 days (22.56 yr)      first obs. used      1998-04-24      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54139      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:54:34   Additional Information  Earth MOID = 1.06326 au   Jupiter MOID = 2.30996 au   T_jup = 3.384  [ 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 15.6   n/a MPO436274   70391 (1999 RP230)          Discovered 1999-Sep-08 by CSS at Catalina Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-26 06:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin