+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   243171 (2007 TA128) Classification: Main-belt Asteroid          SPK-ID: 2243171 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .005257487776012498 5.8199e-08   a 2.861087354406656 3.8409e-08 au q 2.846045222614759 1.6752e-07 au i 3.158508590241404 6.4726e-06 deg node 79.16949291440525 0.00012634 deg peri 46.08143005326099 0.00068665 deg M 133.6934396908399 0.00067537 deg tp 2458344.048417055357 (2018-Aug-13.54841706) 0.0033146 TDB period 1767.645221834048 4.84 3.5595e-05 9.745e-08 d yr n .2036607773739102 4.1011e-09 deg/d Q 2.876129486198554 3.8611e-08 au   Orbit Determination Parameters    # obs. used (total)      172      data-arc span      5114 days (14.00 yr)      first obs. used      2005-04-10      last obs. used      2019-04-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61992      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 10:54:27   Additional Information  Earth MOID = 1.8553 au   Jupiter MOID = 2.09035 au   T_jup = 3.299  [ 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 16.5   n/a MPO433593   243171 (2007 TA128)          Discovered 2007-Oct-06 by Spacewatch at Kitt Peak Reference: 20100626/Numbers.arc Last Updated: 2010-06-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-13 18:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin