+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   447828 (2007 TL346) Classification: Main-belt Asteroid          SPK-ID: 2447828 [ 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 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1128309055260631 5.1537e-08   a 2.429594732455291 2.1398e-08 au q 2.155461358731008 1.2531e-07 au i 5.711521803051562 7.5485e-06 deg node 161.6736795557634 5.6866e-05 deg peri 110.0320947360574 6.6313e-05 deg M 215.7423839804634 3.5012e-05 deg tp 2459554.787944403265 (2021-Dec-06.28794440) 0.00013633 TDB period 1383.245235094912 3.79 1.8273e-05 5.003e-08 d yr n .2602575384800068 3.4382e-09 deg/d Q 2.703728106179575 2.3812e-08 au   Orbit Determination Parameters    # obs. used (total)      123      data-arc span      5470 days (14.98 yr)      first obs. used      2003-09-16      last obs. used      2018-09-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .7607      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 04:28:47   Additional Information  Earth MOID = 1.14743 au   Jupiter MOID = 2.39221 au   T_jup = 3.493  [ 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 17.5   n/a MPO437740   447828 (2007 TL346)          Discovered 2007-Oct-13 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2015-10-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-09 14:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin