+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2456544807339479 5.4131e-08   a 2.361925176468183 1.1192e-08 au q 1.781707673710454 1.2878e-07 au i 21.54357690159405 9.9834e-06 deg node 296.6577087462622 1.5253e-05 deg peri 130.3152916657619 2.4868e-05 deg M 290.1438450541342 1.8819e-05 deg tp 2459257.776314976515 (2021-Feb-12.27631498) 7.0201e-05 TDB period 1325.859882544635 3.63 9.4235e-06 2.58e-08 d yr n .2715219041917731 1.9298e-09 deg/d Q 2.942142679225914 1.3941e-08 au   Orbit Determination Parameters    # obs. used (total)      588      data-arc span      8982 days (24.59 yr)      first obs. used      1996-01-01      last obs. used      2020-08-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51032      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 09:02:58   Additional Information  Earth MOID = .854972 au   Jupiter MOID = 2.43608 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 15.1   n/a MPO385420   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 ] 2020-Oct-21 02:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin