+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 LB) Classification: Aten [NEO]          SPK-ID: 3825059 [ 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 .318989829551668 0.00034304   a .8250538855840149 0.00013212 au q .5618700872506286 0.00037293 au i .8791837120305471 0.000963 deg node 79.51223563892502 0.0028277 deg peri 318.6408642382366 0.0016967 deg M 18.94195836755362 0.32353 deg tp 2459186.097288058520 (2020-Dec-02.59728806) 0.24254 TDB period 273.72968508971 0.75 0.06575 0.00018 d yr n 1.31516609125538 0.0003159 deg/d Q 1.088237683917401 0.00017426 au   Orbit Determination Parameters    # obs. used (total)      33      data-arc span      1 day      first obs. used      2018-06-01      last obs. used      2018-06-02      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      7      norm. resid. RMS      .51949      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 20:29:57   Additional Information  Earth MOID = .00245007 au   Jupiter MOID = 4.29857 au   T_jup = 7.061  [ 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 26.0   n/a E2018L07   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-16 18:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin