+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70237 (1999 RO68) Classification: Main-belt Asteroid          SPK-ID: 2070237 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1928428864146788 3.8582e-08   a 2.369639515365642 1.0552e-08 au q 1.912671391460251 9.1077e-08 au i 2.807579142519883 4.5395e-06 deg node 21.5161280659224 8.9492e-05 deg peri 28.83296805170429 9.0324e-05 deg M 197.2416621508706 1.4301e-05 deg tp 2459602.868977464142 (2022-Jan-23.36897746) 5.5599e-05 TDB period 1332.360816366318 3.65 8.8999e-06 2.437e-08 d yr n .2701970784324101 1.8049e-09 deg/d Q 2.826607639271033 1.2587e-08 au   Orbit Determination Parameters    # obs. used (total)      494      data-arc span      9576 days (26.22 yr)      first obs. used      1994-04-06      last obs. used      2020-06-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .544      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:01:33   Additional Information  Earth MOID = .923683 au   Jupiter MOID = 2.55199 au   T_jup = 3.519  [ 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 16.5   n/a MPO468641   70237 (1999 RO68)          Discovered 1999-Sep-07 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-19 00:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin