+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118225 (1996 TP18) Classification: Main-belt Asteroid          SPK-ID: 2118225 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06664113927873815 5.7395e-08   a 2.871726609763102 2.5682e-08 au q 2.68035147679142 1.7222e-07 au i 2.018777895840897 7.6174e-06 deg node 20.55890947015597 0.00016709 deg peri 25.47118724380308 0.0001792 deg M 299.8794771009647 6.4866e-05 deg tp 2459297.347444106363 (2021-Mar-23.84744411) 0.00032154 TDB period 1777.514145340301 4.87 2.3844e-05 6.528e-08 d yr n .2025300338361463 2.7168e-09 deg/d Q 3.063101742734783 2.7393e-08 au   Orbit Determination Parameters    # obs. used (total)      336      data-arc span      8698 days (23.81 yr)      first obs. used      1996-10-04      last obs. used      2020-07-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6117      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 10:02:24   Additional Information  Earth MOID = 1.68969 au   Jupiter MOID = 2.19973 au   T_jup = 3.294  [ 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 15.8   n/a MPO436568   118225 (1996 TP18)          Discovered 1996-Oct-04 by Spacewatch at Kitt Peak Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-30 17:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin