+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134464 (1998 TQ2) Classification: Main-belt Asteroid          SPK-ID: 2134464 [ 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 .2096446857101544 5.5465e-08   a 2.589206673363113 1.1018e-08 au q 2.046393254087269 1.4079e-07 au i 4.139015788966701 5.1693e-06 deg node 232.6927387060817 5.7837e-05 deg peri 162.2936347615 5.8959e-05 deg M 111.2842681053359 1.0113e-05 deg tp 2458730.086500201335 (2019-Sep-03.58650020) 4.2674e-05 TDB period 1521.768196087004 4.17 9.7133e-06 2.659e-08 d yr n .2365669100758482 1.51e-09 deg/d Q 3.132020092638957 1.3328e-08 au   Orbit Determination Parameters    # obs. used (total)      618      data-arc span      8134 days (22.27 yr)      first obs. used      1998-10-11      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53404      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:40:18   Additional Information  Earth MOID = 1.05262 au   Jupiter MOID = 2.30276 au   T_jup = 3.386  [ 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 15.76   n/a E2021B55   134464 (1998 TQ2)          Discovered 1998-Oct-13 by ODAS at Caussols Reference: 20060907/Numbers.arc Last Updated: 2006-09-10 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 02:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin