+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 HB11) Classification: Centaur          SPK-ID: 54017270 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .7076312543189139 0.00091028   a 16.5485257382507 0.053714 au q 4.838271712963525 0.00066116 au i 147.2975391274913 0.00058027 deg node 290.1460651913986 0.0035146 deg peri 104.5464863837809 0.039468 deg M 358.7602539351245 0.010819 deg tp 2459085.177422335294 (2020-Aug-23.67742234) 0.35046 TDB period 24588.80322702824 67.32 119.72 0.3278 d yr n .01464081015558678 7.1283e-05 deg/d Q 28.25877976353787 0.091724 au   Orbit Determination Parameters    # obs. used (total)      74      data-arc span      37 days      first obs. used      2020-04-18      last obs. used      2020-05-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      6      norm. resid. RMS      .43786      source      ORB      producer      Otto Matic      solution date      2020-May-27 08:12:09   Additional Information  Earth MOID = 4.02006 au   Jupiter MOID = 1.11834 au   T_jup = -1.806  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.947   .4606 1 autocmod 2.8 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ] 2020-Nov-27 04:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin