+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101471 (1998 WX16) Classification: Main-belt Asteroid          SPK-ID: 2101471 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1622857671103755 4.5448e-08   a 2.652194642235492 1.6045e-08 au q 2.221781200194278 1.2687e-07 au i 5.783294366955283 4.446e-06 deg node 232.4584823728318 4.5609e-05 deg peri 166.6042193805156 4.8148e-05 deg M 8.102544221159976 1.5263e-05 deg tp 2458964.992064186732 (2020-Apr-25.49206419) 6.6762e-05 TDB period 1577.634943280375 4.32 1.4316e-05 3.92e-08 d yr n .2281896718460433 2.0707e-09 deg/d Q 3.082608084276707 1.8649e-08 au   Orbit Determination Parameters    # obs. used (total)      557      data-arc span      7998 days (21.90 yr)      first obs. used      1998-11-21      last obs. used      2020-10-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56242      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:00:24   Additional Information  Earth MOID = 1.23021 au   Jupiter MOID = 2.32824 au   T_jup = 3.364  [ 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 15.7   n/a MPO449615   101471 (1998 WX16)          Discovered 1998-Nov-21 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-26 19:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin