+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   413925 (2006 WJ171) Classification: Main-belt Asteroid          SPK-ID: 2413925 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0955688047406752 1.5393e-07   a 2.625410438799214 4.1147e-08 au q 2.374503101209481 4.0567e-07 au i 12.26199661113332 8.2091e-06 deg node 72.33404341469019 3.8041e-05 deg peri 138.7655146685669 9.4397e-05 deg M 288.473262068639 9.8447e-05 deg tp 2459309.216723703762 (2021-Apr-04.71672370) 0.00042604 TDB period 1553.796856219076 4.25 3.6528e-05 1e-07 d yr n .2316905189755656 5.4468e-09 deg/d Q 2.876317776388946 4.508e-08 au   Orbit Determination Parameters    # obs. used (total)      89      data-arc span      5745 days (15.73 yr)      first obs. used      2004-03-15      last obs. used      2019-12-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .63957      source      ORB      producer      Otto Matic      solution date      2019-Dec-14 22:06:22   Additional Information  Earth MOID = 1.37986 au   Jupiter MOID = 2.13622 au   T_jup = 3.364  [ hide covariance matrix ] Orbital Elements at Epoch 2456859.5 (2014-Jul-21.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09631814581921749 1.5298e-07   q 2.371912455485361 4.0317e-07 au tp 2456204.239601433208 (2012-Oct-03.73960143) 0.00042183 TDB node 72.39116003287877 3.8059e-05 deg peri 139.1558828022554 9.4777e-05 deg i 12.26016509849707 8.2073e-06 deg   Orbit Determination Parameters    # obs. used (total)      89      data-arc span      5745 days (15.73 yr)      first obs. used      2004-03-15      last obs. used      2019-12-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .63957      source      ORB      producer      Otto Matic      solution date      2019-Dec-14 22:06:22   Additional Information  Jupiter MOID = 2.13622 au   T_jup = 3.364  Orbit Covariance (6×6)   e q tp node peri i e 2.340393105831665E-14 -6.141732062147514E-14 -5.156986117361716E-11 3.813380458405552E-13 -1.02560332569125E-11 -2.383949580239025E-14 q -6.141732062147514E-14 1.625442072700368E-13 1.352229785205166E-10 -1.006030517030501E-12 2.701411834134676E-11 6.939843771750196E-14 tp -5.156986117361716E-11 1.352229785205166E-10 1.779365168124515E-7 -1.160571234667332E-9 3.664648441872361E-8 1.213796206612627E-10 node 3.813380458405552E-13 -1.006030517030501E-12 -1.160571234667332E-9 1.448473871931022E-9 -1.644752541604371E-9 -1.446527274185954E-11 peri -1.02560332569125E-11 2.701411834134676E-11 3.664648441872361E-8 -1.644752541604371E-9 8.982756179297507E-9 3.959362829234892E-11 i -2.383949580239025E-14 6.939843771750196E-14 1.213796206612627E-10 -1.446527274185954E-11 3.959362829234892E-11 6.736026081245672E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.7   n/a MPO455948   413925 (2006 WJ171)          Discovered 2006-Oct-31 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2014-11-10 Alternate Designations  2006 WJ171 = 2010 VF110  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-03 15:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin