+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102446 (1999 TO216) Classification: Main-belt Asteroid          SPK-ID: 2102446 [ 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 .1159097262359566 1.7869e-07   a 2.519633087701885 1.0614e-08 au q 2.227583106291302 4.5089e-07 au i 2.241767272375014 7.1616e-06 deg node 151.9059873286955 0.00016203 deg peri 275.1934748673208 0.00022717 deg M 70.25880260966201 0.00014633 deg tp 2458915.396450398972 (2020-Mar-06.89645040) 0.00059363 TDB period 1460.845816382518 4.00 9.2308e-06 2.527e-08 d yr n .246432577594989 1.5572e-09 deg/d Q 2.811683069112469 1.1844e-08 au   Orbit Determination Parameters    # obs. used (total)      680      data-arc span      7784 days (21.31 yr)      first obs. used      1999-10-03      last obs. used      2021-01-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56741      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:31:29   Additional Information  Earth MOID = 1.24219 au   Jupiter MOID = 2.4454 au   T_jup = 3.446  [ 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 16.2   n/a MPO348134   102446 (1999 TO216)          Discovered 1999-Oct-15 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 02:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin