+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102010 (1999 RE84) Classification: Main-belt Asteroid          SPK-ID: 2102010 [ 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 .2666791241564533 2.8471e-08   a 2.534220804893222 1.0678e-08 au q 1.858397020225235 7.15e-08 au i 3.440845372466219 1.1617e-05 deg node 2.899317498226224 9.0133e-05 deg peri 72.49467521440812 9.7456e-05 deg M 41.83056941358505 3.6798e-05 deg tp 2459029.279255756449 (2020-Jun-28.77925576) 0.00015032 TDB period 1473.550773795111 4.03 9.3133e-06 2.55e-08 d yr n .2443078354693029 1.5441e-09 deg/d Q 3.210044589561209 1.3526e-08 au   Orbit Determination Parameters    # obs. used (total)      656      data-arc span      10690 days (29.27 yr)      first obs. used      1991-10-06      last obs. used      2021-01-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59353      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:30:19   Additional Information  Earth MOID = .876486 au   Jupiter MOID = 2.09286 au   T_jup = 3.396  [ 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 15.9   n/a MPO493574   102010 (1999 RE84)          Discovered 1999-Sep-07 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-05 01:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin