+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100403 (1996 AD) Classification: Main-belt Asteroid          SPK-ID: 2100403 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2456869697288473 4.7103e-08   a 2.361629403956266 8.6037e-09 au q 1.781407832075707 1.1505e-07 au i 21.54372837807265 4.0321e-06 deg node 296.6580418151975 1.3808e-05 deg peri 130.3562708146751 2.0898e-05 deg M 344.424581894974 1.2034e-05 deg tp 2459257.852619823085 (2021-Feb-12.35261982) 4.432e-05 TDB period 1325.61084377234 3.63 7.244e-06 1.983e-08 d yr n .2715729142464878 1.4841e-09 deg/d Q 2.941850975836824 1.0717e-08 au   Orbit Determination Parameters    # obs. used (total)      1253      data-arc span      9149 days (25.05 yr)      first obs. used      1996-01-01      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40705      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:25:10   Additional Information  Earth MOID = .854325 au   Jupiter MOID = 2.43627 au   T_jup = 3.418  [ 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 15.22   n/a E2021B55   100403 (1996 AD)          Discovered 1996-Jan-01 by Kobayashi, T. at Oizumi Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-02 06:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin