+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102376 (1999 TX145) Classification: Main-belt Asteroid          SPK-ID: 2102376 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1098977490359314 5.6229e-08   a 2.420139082704665 9.6377e-09 au q 2.154171245161538 1.365e-07 au i 8.562130641140286 4.7606e-06 deg node 31.77498832323505 2.7789e-05 deg peri 141.2269181816976 3.212e-05 deg M 70.61228176615337 1.5425e-05 deg tp 2458930.765399701534 (2020-Mar-22.26539970) 5.9006e-05 TDB period 1375.177995649942 3.77 8.2145e-06 2.249e-08 d yr n .2617842934796638 1.5638e-09 deg/d Q 2.686106920247792 1.0697e-08 au   Orbit Determination Parameters    # obs. used (total)      1343      data-arc span      7594 days (20.79 yr)      first obs. used      1999-09-09      last obs. used      2020-06-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50331      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:55:07   Additional Information  Earth MOID = 1.16445 au   Jupiter MOID = 2.28246 au   T_jup = 3.491  [ 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 15.09   n/a E2021B55   102376 (1999 TX145)          Discovered 1999-Oct-07 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-04 19:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin