+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   180259 (2003 WN8) Classification: Main-belt Asteroid          SPK-ID: 2180259 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1083052926736944 4.6763e-08   a 2.2017942287322 8.7165e-09 au q 1.963328260382108 1.048e-07 au i 5.826328524966188 3.9725e-06 deg node 306.2382593463131 4.5079e-05 deg peri 67.89409815416072 4.8033e-05 deg M 114.9286043612815 1.6201e-05 deg tp 2458819.531425821166 (2019-Dec-02.03142582) 5.3378e-05 TDB period 1193.338137764634 3.27 7.0863e-06 1.94e-08 d yr n .3016747630930102 1.7914e-09 deg/d Q 2.440260197082292 9.6606e-09 au   Orbit Determination Parameters    # obs. used (total)      423      data-arc span      6350 days (17.39 yr)      first obs. used      2003-10-18      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53826      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:25:47   Additional Information  Earth MOID = .970399 au   Jupiter MOID = 2.99876 au   T_jup = 3.650  [ 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 16.9   n/a MPO494000   180259 (2003 WN8)          Discovered 2003-Nov-16 by Spacewatch at Kitt Peak Reference: 20080321/Numbers.arc Last Updated: 2008-03-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 18:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin