+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   344303 (2001 UN111) Classification: Main-belt Asteroid          SPK-ID: 2344303 [ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1093320054854881 1.2141e-07   a 3.068186024291302 4.2001e-08 au q 2.732735093052987 3.6886e-07 au i 15.0594995443708 1.4747e-05 deg node 210.3211279604023 2.2049e-05 deg peri 193.4296386868079 4.1045e-05 deg M 156.0769559449882 3.5785e-05 deg tp 2458149.445752919130 (2018-Jan-30.94575292) 0.00019098 TDB period 1963.002975641718 5.37 4.0308e-05 1.104e-07 d yr n .1833924881760883 3.7658e-09 deg/d Q 3.403636955529616 4.6593e-08 au   Orbit Determination Parameters    # obs. used (total)      132      data-arc span      6770 days (18.54 yr)      first obs. used      2001-10-15      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .67243      source      ORB      producer      Otto Matic      solution date      2020-May-21 22:24:57   Additional Information  Earth MOID = 1.74278 au   Jupiter MOID = 2.02671 au   T_jup = 3.170  [ 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 MPO288287   344303 (2001 UN111)          Discovered 2001-Oct-21 by LINEAR at Socorro Reference: 20121128/Numbers.arc Last Updated: 2012-12-03 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-11 05:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin