+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   249706 (2000 JJ8) Classification: Main-belt Asteroid          SPK-ID: 2249706 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1084501059977983 6.9497e-08   a 2.640306360214703 2.1783e-08 au q 2.353964855582757 1.8637e-07 au i 14.1039804278857 7.3432e-06 deg node 204.1972118607344 1.7636e-05 deg peri 351.3630830340259 2.8327e-05 deg M 260.4615680478606 2.3281e-05 deg tp 2459433.779562219658 (2021-Aug-07.27956222) 0.00010365 TDB period 1567.039377052639 4.29 1.9392e-05 5.309e-08 d yr n .2297325806050292 2.843e-09 deg/d Q 2.926647864846648 2.4145e-08 au   Orbit Determination Parameters    # obs. used (total)      252      data-arc span      7173 days (19.64 yr)      first obs. used      2000-04-05      last obs. used      2019-11-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61137      source      ORB      producer      Otto Matic      solution date      2019-Dec-04 18:48:43   Additional Information  Earth MOID = 1.35277 au   Jupiter MOID = 2.03662 au   T_jup = 3.344  [ 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 MPO450108   249706 (2000 JJ8)          Discovered 2000-May-05 by Spacewatch at Kitt Peak Reference: 20100923/Numbers.arc Last Updated: 2010-09-27 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-15 17:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin