+ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1862620353119974 7.2803e-08   a 2.543951125228451 1.242e-08 au q 2.070109610909154 1.8963e-07 au i 13.07978677191944 7.0656e-06 deg node 151.1796053307958 1.6625e-05 deg peri 154.6827883664848 2.1092e-05 deg M 73.09038301706244 1.0721e-05 deg tp 2458699.601994644594 (2019-Aug-04.10199464) 4.3893e-05 TDB period 1482.045618814977 4.06 1.0854e-05 2.972e-08 d yr n .2429075025962096 1.7789e-09 deg/d Q 3.017792639547749 1.4734e-08 au   Orbit Determination Parameters    # obs. used (total)      636      data-arc span      7862 days (21.52 yr)      first obs. used      1998-04-24      last obs. used      2019-11-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54394      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 16:09:42   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 ] 2020-Sep-20 14:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin