+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06663977599871447 5.7151e-08   a 2.871296606994721 1.8253e-08 au q 2.679954044278724 1.7054e-07 au i 2.018903842664531 7.4301e-06 deg node 20.55682007463579 0.00012486 deg peri 25.65580422379239 0.00013881 deg M 340.224453373082 5.7914e-05 deg tp 2459298.120608322005 (2021-Mar-24.62060832) 0.0002859 TDB period 1777.114921722842 4.87 1.6946e-05 4.64e-08 d yr n .2025755316099616 1.9317e-09 deg/d Q 3.062639169710718 1.947e-08 au   Orbit Determination Parameters    # obs. used (total)      442      data-arc span      8859 days (24.25 yr)      first obs. used      1996-10-04      last obs. used      2021-01-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57073      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:19:12   Additional Information  Earth MOID = 1.68838 au   Jupiter MOID = 2.19907 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 15.85   n/a E2021B55   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 ] 2021-Apr-10 20:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin