+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102328 (1999 TJ109) Classification: Main-belt Asteroid          SPK-ID: 2102328 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05635785442944015 5.7578e-08   a 2.19307321118397 1.02e-08 au q 2.069476310394959 1.2359e-07 au i 6.52128957962312 4.3174e-06 deg node 227.0233877503378 5.243e-05 deg peri 70.39005443327055 6.4611e-05 deg M 246.2219024047075 3.9315e-05 deg tp 2459575.416271152179 (2021-Dec-26.91627115) 0.00013023 TDB period 1186.255179752351 3.25 8.2758e-06 2.266e-08 d yr n .3034760194473129 2.1172e-09 deg/d Q 2.316670111972981 1.0775e-08 au   Orbit Determination Parameters    # obs. used (total)      457      data-arc span      8471 days (23.19 yr)      first obs. used      1996-12-05      last obs. used      2020-02-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5891      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:55:24   Additional Information  Earth MOID = 1.06237 au   Jupiter MOID = 2.76417 au   T_jup = 3.661  [ 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 16.31   n/a E2021B55   102328 (1999 TJ109)          Discovered 1999-Oct-04 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-09 02:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin