+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   226574 (2003 YJ2) Classification: Inner Main-belt Asteroid          SPK-ID: 2226574 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09394748642104221 8.8399e-08   a 1.98374450703534 1.3576e-08 au q 1.79737669689782 1.7559e-07 au i 16.37369921796063 1.0132e-05 deg node 281.5556668130268 2.4928e-05 deg peri 155.3980241820775 0.0001115 deg M 331.9906268889007 8.9137e-05 deg tp 2459079.901356264766 (2020-Aug-18.40135626) 0.00025248 TDB period 1020.532953091638 2.79 1.0476e-05 2.868e-08 d yr n .3527568599420562 3.6212e-09 deg/d Q 2.170112317172859 1.4852e-08 au   Orbit Determination Parameters    # obs. used (total)      247      data-arc span      6263 days (17.15 yr)      first obs. used      2000-12-17      last obs. used      2018-02-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5503      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 12:49:45   Additional Information  Earth MOID = .821383 au   Jupiter MOID = 3.02332 au   T_jup = 3.803  [ 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 MPO437074   226574 (2003 YJ2)          Discovered 2003-Dec-18 by LINEAR at Socorro Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-08 12:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin