+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70298 (1999 RJ129) Classification: Main-belt Asteroid          SPK-ID: 2070298 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2264484049858431 3.4874e-08   a 2.42889424810348 8.1243e-09 au q 1.878875019741159 8.6012e-08 au i 2.893976339173286 4.7961e-06 deg node 154.7495493669891 6.327e-05 deg peri 215.7251446070806 6.4012e-05 deg M 148.9323264263678 9.6272e-06 deg tp 2458428.497654961059 (2018-Nov-05.99765496) 3.609e-05 TDB period 1382.647066322611 3.79 6.9372e-06 1.899e-08 d yr n .2603701326018665 1.3064e-09 deg/d Q 2.978913476465802 9.9641e-09 au   Orbit Determination Parameters    # obs. used (total)      622      data-arc span      9511 days (26.04 yr)      first obs. used      1994-04-03      last obs. used      2020-04-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49309      source      ORB      producer      Otto Matic      solution date      2020-May-20 13:37:04   Additional Information  Earth MOID = .879402 au   Jupiter MOID = 2.48387 au   T_jup = 3.472  [ 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 16.3   n/a MPO449443   70298 (1999 RJ129)          Discovered 1999-Sep-09 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-27 07:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin