+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2013 BK78) Classification: TransNeptunian Object          SPK-ID: 3625910 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .7823264829733784 0.00010177   a 37.99350386426099 0.01839 au q 8.270179610298229 0.00013782 au i 2.207610291840374 8.2149e-05 deg node 175.1701288805883 0.0031873 deg peri 283.0380812590207 0.0034437 deg M 12.87757747796249 0.0094513 deg tp 2455940.692404060254 (2012-Jan-14.19240406) 0.025784 TDB period 85538.66101162018 234.19 62.105 0.17 d yr n .004208623279140353 3.0556e-06 deg/d Q 67.71682811822375 0.032777 au   Orbit Determination Parameters    # obs. used (total)      54      data-arc span      1499 days (4.10 yr)      first obs. used      2011-01-10      last obs. used      2015-02-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      4      norm. resid. RMS      .20679      source      ORB      producer      Otto Matic      solution date      2017-Apr-07 15:18:35   Additional Information  Earth MOID = 7.28782 au   Jupiter MOID = 3.09282 au   T_jup = 3.501  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.5   n/a MPO384267   [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Jan-17 20:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin