+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259625 (2003 WS25) Classification: Main-belt Asteroid          SPK-ID: 2259625 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1689089240576737 5.1373e-08   a 2.637426643138915 1.6013e-08 au q 2.191941746565278 1.3391e-07 au i 33.89656439770505 6.9531e-06 deg node 133.8964027284007 9.8719e-06 deg peri 342.0765470524258 2.1789e-05 deg M 9.472212581033959 1.8168e-05 deg tp 2459159.335964323693 (2020-Nov-05.83596432) 7.8884e-05 TDB period 1564.476379377547 4.28 1.4248e-05 3.901e-08 d yr n .2301089391603547 2.0956e-09 deg/d Q 3.082911539712551 1.8718e-08 au   Orbit Determination Parameters    # obs. used (total)      347      data-arc span      8598 days (23.54 yr)      first obs. used      1997-07-11      last obs. used      2021-01-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59718      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 14:02:18   Additional Information  Earth MOID = 1.21679 au   Jupiter MOID = 2.01326 au   T_jup = 3.138  [ 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 15.8   n/a MPO413178   259625 (2003 WS25)          Discovered 2003-Nov-20 by Spacewatch at Kitt Peak Reference: 20110119/Numbers.arc Last Updated: 2011-01-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-27 19:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin