+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 BX) Classification: Aten [NEO]          SPK-ID: 3797715 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 2 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2198836941850572 8.7967e-05   a .8245519426413594 5.2344e-05 au q .643246415445912 0.00011337 au i 6.486180269593637 0.0044896 deg node 298.6144407355386 0.0010925 deg peri 338.4045883977217 0.00058211 deg M 171.6700550925493 0.1393 deg tp 2459070.088016173212 (2020-Aug-08.58801617) 0.093403 TDB period 273.4799272495904 0.75 0.026041 7.13e-05 d yr n 1.31636717773238 0.00012535 deg/d Q 1.005857469836807 6.3853e-05 au   Orbit Determination Parameters    # obs. used (total)      29      data-arc span      1 day      first obs. used      2018-01-18      last obs. used      2018-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      6      norm. resid. RMS      .55625      source      ORB      producer      Otto Matic      solution date      2018-Jan-19 06:53:23   Additional Information  Earth MOID = .00173309 au   Jupiter MOID = 4.07343 au   T_jup = 7.082  [ 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 29.1   n/a MPO431477   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-13 18:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin