+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259639 (2003 WF45) Classification: Main-belt Asteroid          SPK-ID: 2259639 [ 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 .2187574706826977 5.9717e-08   a 2.219481634503666 1.0892e-08 au q 1.733953445912944 1.3403e-07 au i 3.93534190896884 4.982e-06 deg node 252.9146652684021 9.9408e-05 deg peri 74.71093076998541 0.00010015 deg M 68.68404990443705 1.4341e-05 deg tp 2458770.075234177530 (2019-Oct-13.57523418) 4.7551e-05 TDB period 1207.746424555703 3.31 8.8904e-06 2.434e-08 d yr n .2980758151550184 2.1942e-09 deg/d Q 2.705009823094387 1.3275e-08 au   Orbit Determination Parameters    # obs. used (total)      264      data-arc span      5895 days (16.14 yr)      first obs. used      2003-10-16      last obs. used      2019-12-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60134      source      ORB      producer      Otto Matic      solution date      2019-Dec-14 17:08:47   Additional Information  Earth MOID = .72766 au   Jupiter MOID = 2.65048 au   T_jup = 3.616  [ 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 MPO433692   259639 (2003 WF45)          Discovered 2003-Nov-19 by NEAT at Palomar Reference: 20110119/Numbers.arc Last Updated: 2011-01-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-22 23:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin