+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 BX12) Classification: Apollo [NEO, PHA]          SPK-ID: 3989285 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5269629723786134 6.76e-08   a 1.600386473182807 1.3502e-08 au q .7570420603198689 1.0896e-07 au i 40.06745678625946 1.8379e-05 deg node 132.90353938 1.17e-06 deg peri 70.49213454655818 1.5459e-05 deg M 34.44175210633377 2.2647e-06 deg tp 2458929.751298942049 (2020-Mar-21.25129894) 4.72e-06 TDB period 739.4958393007695 2.02 9.3584e-06 2.562e-08 d yr n .4868181548396514 6.1607e-09 deg/d Q 2.443730886045745 2.0617e-08 au   Orbit Determination Parameters    # obs. used (total)      154      # delay obs. used      1      # Doppler obs. used      1      data-arc span      2224 days (6.09 yr)      first obs. used      2014-01-05      last obs. used      2020-02-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .30045      source      ORB      producer      Otto Matic      solution date      2020-May-01 05:59:42   Additional Information  Earth MOID = .00206089 au   Jupiter MOID = 3.13769 au   T_jup = 3.973  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 20.638   .39479 14 autocmod 2.8 rotation period rot_per 2.8 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Virkki, A.K.; Zmabrano-Marin, L.F.; Marshall, S.E.; Hickson, D.C.; et al. (2020) CBET 4725.] [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-26 00:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin