+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259621 (2003 WY) Classification: Main-belt Asteroid          SPK-ID: 2259621 [ 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 .1653082922789665 5.0587e-08   a 2.233205845687705 1.1716e-08 au q 1.864038401029665 1.1355e-07 au i 1.671850486899765 5.8454e-06 deg node 218.8522294635777 0.00016825 deg peri 150.2833474310395 0.00016908 deg M 17.29588265879702 1.6908e-05 deg tp 2458941.935857282023 (2020-Apr-02.43585728) 5.7035e-05 TDB period 1218.965911967979 3.34 9.5929e-06 2.626e-08 d yr n .2953322947471044 2.3242e-09 deg/d Q 2.602373290345745 1.3653e-08 au   Orbit Determination Parameters    # obs. used (total)      241      data-arc span      7220 days (19.77 yr)      first obs. used      2001-01-15      last obs. used      2020-10-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6265      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 23:08:44   Additional Information  Earth MOID = .863543 au   Jupiter MOID = 2.86302 au   T_jup = 3.622  [ 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 17.5   n/a MPO437206   259621 (2003 WY)          Discovered 2003-Nov-16 by CSS at Catalina Reference: 20110119/Numbers.arc Last Updated: 2011-01-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-22 23:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin