+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102462 (1999 TE229) Classification: Main-belt Asteroid          SPK-ID: 2102462 [ 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 .1789882532691856 4.2221e-08   a 2.257509608071185 8.6253e-09 au q 1.85344190658412 9.376e-08 au i 7.011254705412836 4.2974e-06 deg node 18.19447249485628 3.3361e-05 deg peri 329.5132907168442 3.5562e-05 deg M 93.05999152150903 1.5297e-05 deg tp 2458880.239523274949 (2020-Jan-31.73952327) 5.1586e-05 TDB period 1238.918784925639 3.39 7.1003e-06 1.944e-08 d yr n .29057594765714 1.6653e-09 deg/d Q 2.66157730955825 1.0169e-08 au   Orbit Determination Parameters    # obs. used (total)      786      data-arc span      8336 days (22.82 yr)      first obs. used      1998-03-22      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53573      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:31:30   Additional Information  Earth MOID = .849639 au   Jupiter MOID = 2.76663 au   T_jup = 3.591  [ 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 MPO532331   102462 (1999 TE229)          Discovered 1999-Oct-04 by LONEOS at Anderson Mesa Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-28 20:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin