+ 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 3 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .340037180306502 0.00065172   a 1.161857595227731 0.0013326 au q .7667828146288003 0.00012227 au i 36.77283329891476 0.052015 deg node 285.7199852193631 7.7791e-05 deg peri 271.7402032805217 0.10657 deg M 51.8418691978687 0.1585 deg tp 2458243.627229409332 (2018-May-05.12722941) 0.088067 TDB period 457.4333020695829 1.25 0.78699 0.002155 d yr n .7869999809179575 0.001354 deg/d Q 1.556932375826662 0.0017857 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.      DE441      SB-pert. ephem.      SB441-N16      condition code      8      norm. resid. RMS      .26939      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 20:32:47   Additional Information  Earth MOID = .00030314 au   Jupiter MOID = 3.84026 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 ] 2021-May-15 09:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin