+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1624667346320199 3.4121e-08   a 2.652775938917669 1.3016e-08 au q 2.221788094411325 9.1926e-08 au i 5.782693654738051 3.9815e-06 deg node 232.455427613101 4.3473e-05 deg peri 166.627482348693 4.6073e-05 deg M 53.70594869675578 1.4798e-05 deg tp 2458965.066004281030 (2020-Apr-25.56600428) 6.4328e-05 TDB period 1578.153640621737 4.32 1.1615e-05 3.18e-08 d yr n .2281146719391483 1.6788e-09 deg/d Q 3.083763783424014 1.513e-08 au   Orbit Determination Parameters    # obs. used (total)      714      data-arc span      8118 days (22.23 yr)      first obs. used      1998-11-21      last obs. used      2021-02-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52865      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:36:56   Additional Information  Earth MOID = 1.22921 au   Jupiter MOID = 2.32804 au   T_jup = 3.363  [ 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 ] 2021-Apr-18 07:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin