+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102868 (1999 WO6) Classification: Main-belt Asteroid          SPK-ID: 2102868 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1645749401289962 5.1252e-08   a 2.791676086187669 1.7903e-08 au q 2.332236161443783 1.3904e-07 au i 14.75732787755012 5.6114e-06 deg node 76.92621272781871 1.5865e-05 deg peri 19.04575474485269 2.265e-05 deg M 120.0740675362305 1.5054e-05 deg tp 2458432.245755445405 (2018-Nov-09.74575545) 6.9563e-05 TDB period 1703.711152934231 4.66 1.6389e-05 4.487e-08 d yr n .211303423928397 2.0326e-09 deg/d Q 3.251116010931555 2.0849e-08 au   Orbit Determination Parameters    # obs. used (total)      676      data-arc span      7559 days (20.70 yr)      first obs. used      1999-11-04      last obs. used      2020-07-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54856      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:52:10   Additional Information  Earth MOID = 1.35333 au   Jupiter MOID = 2.00085 au   T_jup = 3.261  [ 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 15.43   n/a E2021B55   102868 (1999 WO6)          Discovered 1999-Nov-28 by Korlevic, K. at Visnjan Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-01 10:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin