+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70102 (1999 JE123) Classification: Main-belt Asteroid          SPK-ID: 2070102 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1231636497227538 3.86e-08   a 2.174062872891518 8.2316e-09 au q 1.906297354739463 8.5827e-08 au i 3.870500523235411 4.0161e-06 deg node 81.40468109280249 5.8684e-05 deg peri 180.4807939899011 6.1219e-05 deg M 248.7001539828674 1.8331e-05 deg tp 2459562.491721709438 (2021-Dec-13.99172171) 6.0641e-05 TDB period 1170.864331612264 3.21 6.6498e-06 1.821e-08 d yr n .3074651693456961 1.7462e-09 deg/d Q 2.441828391043572 9.2454e-09 au   Orbit Determination Parameters    # obs. used (total)      637      data-arc span      7973 days (21.83 yr)      first obs. used      1999-05-13      last obs. used      2021-03-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54844      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 12:47:26   Additional Information  Earth MOID = .889027 au   Jupiter MOID = 2.60671 au   T_jup = 3.673  [ 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 16.4   n/a MPO531922   70102 (1999 JE123)          Discovered 1999-May-13 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-Apr-20 02:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin