+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58509 (1996 XB1) Classification: Main-belt Asteroid          SPK-ID: 2058509 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09533731811932779 5.3594e-08   a 3.062680049142608 1.9954e-08 au q 2.770692346999781 1.629e-07 au i 10.32685076471013 5.5269e-06 deg node 54.52723331447883 2.4359e-05 deg peri 322.5464263483015 3.2134e-05 deg M 186.5207083719714 2.1945e-05 deg tp 2459943.900300889987 (2022-Dec-30.40030089) 0.00012243 TDB period 1957.721323007312 5.36 1.9132e-05 5.238e-08 d yr n .1838872549270668 1.7971e-09 deg/d Q 3.354667751285436 2.1856e-08 au   Orbit Determination Parameters    # obs. used (total)      855      data-arc span      8669 days (23.73 yr)      first obs. used      1996-10-14      last obs. used      2020-07-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57845      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:50:51   Additional Information  Earth MOID = 1.782 au   Jupiter MOID = 2.10511 au   T_jup = 3.202  [ hide covariance matrix ] Orbital Elements at Epoch 2457114.5 (2015-Apr-02.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09479399707151062 5.3638e-08   q 2.77267699353595 1.6298e-07 au tp 2457989.716210094476 (2017-Aug-24.21621009) 0.00011696 TDB node 54.54803539708181 2.4353e-05 deg peri 323.3793306612389 3.217e-05 deg i 10.32770548165503 5.5271e-06 deg   Orbit Determination Parameters    # obs. used (total)      855      data-arc span      8669 days (23.73 yr)      first obs. used      1996-10-14      last obs. used      2020-07-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57845      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:50:51   Additional Information  Jupiter MOID = 2.10511 au   T_jup = 3.202  Orbit Covariance (6×6)   e q tp node peri i e 2.877008751665901E-15 -8.688974515179985E-15 1.157700462375442E-12 -9.3741021883324E-15 1.501390920227467E-13 -1.06437083276383E-15 q -8.688974515179985E-15 2.656145447035499E-14 -3.095089984737894E-12 2.560517634865728E-14 -4.071279590831362E-13 4.723646875056431E-15 tp 1.157700462375442E-12 -3.095089984737894E-12 1.367893071924006E-8 1.434824671125314E-13 2.470571298245976E-9 -4.935547811494128E-12 node -9.3741021883324E-15 2.560517634865728E-14 1.434824671125314E-13 5.93054013157393E-10 -5.829638023739423E-10 -4.196263985961647E-11 peri 1.501390920227467E-13 -4.071279590831362E-13 2.470571298245976E-9 -5.829638023739423E-10 1.03491585799674E-9 4.041915691394874E-11 i -1.06437083276383E-15 4.723646875056431E-15 -4.935547811494128E-12 -4.196263985961647E-11 4.041915691394874E-11 3.054843765524469E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.43   n/a E2021B10   58509 (1996 XB1)          Discovered 1996-Dec-02 by Kobayashi, T. at Oizumi Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 22:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin