+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   226184 (2002 TW195) Classification: Main-belt Asteroid          SPK-ID: 2226184 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .145938904091138 8.9483e-08   a 2.386760511004801 1.7468e-08 au q 2.038439297700756 2.1206e-07 au i 5.530939725166715 9.0284e-06 deg node 211.021049832437 5.3407e-05 deg peri 145.2106763030865 5.7608e-05 deg M 309.7707711444971 2.5504e-05 deg tp 2459188.416840770326 (2020-Dec-04.91684077) 9.6573e-05 TDB period 1346.826623039144 3.69 1.4786e-05 4.048e-08 d yr n .2672949835129128 2.9344e-09 deg/d Q 2.735081724308846 2.0017e-08 au   Orbit Determination Parameters    # obs. used (total)      273      data-arc span      10039 days (27.49 yr)      first obs. used      1991-11-06      last obs. used      2019-05-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57099      source      ORB      producer      Otto Matic      solution date      2019-May-30 08:28:45   Additional Information  Earth MOID = 1.03739 au   Jupiter MOID = 2.72442 au   T_jup = 3.514  [ 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 16.7   n/a MPO433481   226184 (2002 TW195)          Discovered 2002-Oct-03 by LINEAR at Socorro Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-11 08:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin