+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   187593 (2006 WY117) Classification: Main-belt Asteroid          SPK-ID: 2187593 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05449259817897516 3.846e-08   a 2.862009832923491 2.1068e-08 au q 2.706051481113716 1.2025e-07 au i 2.707831381624662 4.5842e-06 deg node 143.3896438521994 8.0013e-05 deg peri 277.0389911634741 9.1461e-05 deg M 12.21283773353593 4.2717e-05 deg tp 2459140.504428417776 (2020-Oct-18.00442842) 0.00020993 TDB period 1768.500183236893 4.84 1.9528e-05 5.346e-08 d yr n .2035623198755289 2.2477e-09 deg/d Q 3.017968184733267 2.2216e-08 au   Orbit Determination Parameters    # obs. used (total)      502      data-arc span      6959 days (19.05 yr)      first obs. used      2002-01-13      last obs. used      2021-02-01      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50431      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:56:03   Additional Information  Earth MOID = 1.71948 au   Jupiter MOID = 2.16011 au   T_jup = 3.298  [ 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 16.4   n/a MPO446113   187593 (2006 WY117)          Discovered 2006-Nov-20 by Mt. Lemmon Survey at Mount Lemmon Reference: 20080520/Numbers.arc Last Updated: 2008-05-22 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-17 17:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin