+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 NW) Classification: Apollo [NEO]          SPK-ID: 3825565 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2458309.5 (2018-Jul-10.0) TDB Reference: JPL 2 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3400660380760648 0.00065189   a 1.161916717136694 0.0013331 au q .7667883025656707 0.0001223 au i 36.77512534306032 0.05202 deg node 285.7199894757574 7.7799e-05 deg peri 271.7449383704911 0.10658 deg M 51.83483669174934 0.15852 deg tp 2458243.631137897028 (2018-May-05.13113790) 0.088075 TDB period 457.468217717841 1.25 0.78728 0.002155 d yr n .7869399141997711 0.0013543 deg/d Q 1.557045131707717 0.0017864 au   Orbit Determination Parameters    # obs. used (total)      19      data-arc span      2 days      first obs. used      2018-07-08      last obs. used      2018-07-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .26889      source      ORB      producer      Otto Matic      solution date      2018-Jul-11 06:26:27   Additional Information  Earth MOID = .000303159 au   Jupiter MOID = 3.84021 au   T_jup = 5.190  [ 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 27.8   n/a E2018N36   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2020-Aug-08 00:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin