+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3189954922322153 0.00034298   a .8250641248175474 0.00013228 au q .5618723881982319 0.00037298 au i .8791947605751925 0.00096305 deg node 79.5111494543481 0.0028284 deg peri 318.644414870933 0.0016899 deg M 115.9010065125659 0.26031 deg tp 2458912.371842763071 (2020-Mar-03.87184276) 0.17674 TDB period 273.7347807402765 0.75 0.065828 0.0001802 d yr n 1.31514160906565 0.00031627 deg/d Q 1.088255861436863 0.00017447 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.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .51642      source      ORB      producer      Otto Matic      solution date      2018-Jun-03 18:42:03   Additional Information  Earth MOID = .00235871 au   Jupiter MOID = 4.29801 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 ] 2020-Oct-27 08:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin