+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259624 (2003 WN20) Classification: Main-belt Asteroid          SPK-ID: 2259624 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1705298739476223 4.9786e-08   a 2.545568600086118 1.6592e-08 au q 2.111473107588407 1.3026e-07 au i 5.406300608685088 4.4248e-06 deg node 302.6845424121618 9.2788e-05 deg peri 153.8381418636932 9.6168e-05 deg M 358.9202044325638 2.786e-05 deg tp 2459004.949535482270 (2020-Jun-04.44953548) 0.00011482 TDB period 1483.459297226401 4.06 1.4504e-05 3.971e-08 d yr n .2426760212923173 2.3726e-09 deg/d Q 2.979664092583829 1.9421e-08 au   Orbit Determination Parameters    # obs. used (total)      386      data-arc span      7805 days (21.37 yr)      first obs. used      1998-07-01      last obs. used      2019-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6103      source      ORB      producer      Otto Matic      solution date      2019-Dec-04 19:15:54   Additional Information  Earth MOID = 1.12985 au   Jupiter MOID = 2.18872 au   T_jup = 3.416  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.6   n/a MPO348721   259624 (2003 WN20)          Discovered 2003-Nov-19 by LINEAR at Socorro Reference: 20110119/Numbers.arc Last Updated: 2011-01-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-17 22:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin