+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   452904 (2006 UB281) Classification: Main-belt Asteroid          SPK-ID: 2452904 [ 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 .1874025059920794 1.8241e-07   a 2.732680078205377 3.9153e-08 au q 2.220568983475058 5.1061e-07 au i 3.167334527442379 1.2105e-05 deg node 198.7984977909884 0.00018033 deg peri 224.4745477155715 0.00019258 deg M 350.0896267135527 5.4371e-05 deg tp 2459045.922300403591 (2020-Jul-15.42230040) 0.00024964 TDB period 1649.991142882022 4.52 3.5461e-05 9.709e-08 d yr n .2181829893772592 4.689e-09 deg/d Q 3.244791172935696 4.649e-08 au   Orbit Determination Parameters    # obs. used (total)      59      data-arc span      4719 days (12.92 yr)      first obs. used      2006-09-26      last obs. used      2019-08-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .67084      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 07:57:27   Additional Information  Earth MOID = 1.23504 au   Jupiter MOID = 2.08631 au   T_jup = 3.326  [ 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 18.1   n/a MPO357447   452904 (2006 UB281)          Discovered 2006-Sep-26 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2016-01-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-11 08:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin