+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118981 (2000 XS13) Classification: Inner Main-belt Asteroid          SPK-ID: 2118981 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08920887067299933 6.6042e-08   a 1.926390031407072 1.0606e-08 au q 1.754538952229523 1.2751e-07 au i 23.42275883430113 5.5215e-06 deg node 63.15367901621546 1.8173e-05 deg peri 265.6118847721953 5.1242e-05 deg M 214.1730911596361 5.7284e-05 deg tp 2459396.094212582019 (2021-Jun-30.59421258) 0.00015723 TDB period 976.5955931043353 2.67 8.0655e-06 2.208e-08 d yr n .3686275081947243 3.0444e-09 deg/d Q 2.09824111058462 1.1553e-08 au   Orbit Determination Parameters    # obs. used (total)      502      data-arc span      8190 days (22.42 yr)      first obs. used      1997-11-26      last obs. used      2020-04-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5216      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:25:13   Additional Information  Earth MOID = .846849 au   Jupiter MOID = 3.11054 au   T_jup = 3.813  [ 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 16.3   n/a MPO338094   118981 (2000 XS13)          Discovered 2000-Dec-04 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-30 00:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin