+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   452677 (2005 WS204) Classification: Main-belt Asteroid          SPK-ID: 2452677 [ 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 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1520756689779555 8.7232e-08   a 2.184820760873555 1.4508e-08 au q 1.852562682066783 1.9165e-07 au i 6.029699839212696 1.1556e-05 deg node 37.09831237221805 5.1102e-05 deg peri 29.71543042489496 5.7191e-05 deg M 150.8478830762843 2.3605e-05 deg tp 2458506.236128153916 (2019-Jan-22.73612815) 7.6125e-05 TDB period 1179.565733611309 3.23 1.1749e-05 3.217e-08 d yr n .3051970651078844 3.04e-09 deg/d Q 2.517078839680326 1.6715e-08 au   Orbit Determination Parameters    # obs. used (total)      122      data-arc span      5350 days (14.65 yr)      first obs. used      2005-09-03      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54371      source      ORB      producer      Otto Matic      solution date      2020-May-22 04:00:15   Additional Information  Earth MOID = .868641 au   Jupiter MOID = 2.77624 au   T_jup = 3.655  [ 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 18.3   n/a MPO460668   452677 (2005 WS204)          Discovered 2005-Nov-25 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2016-01-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-18 23:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin