+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   109944 (2001 SN43) Classification: Main-belt Asteroid          SPK-ID: 2109944 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .176819662922493 5.5608e-08   a 2.58079633766231 1.6638e-08 au q 2.124460799165256 1.4466e-07 au i 3.260699256024193 5.3515e-06 deg node 45.90012389789882 0.0001144 deg peri 286.9769617325169 0.00011567 deg M 204.6548996839402 2.1799e-05 deg tp 2459653.967640917526 (2022-Mar-15.46764092) 9.62e-05 TDB period 1514.359643475598 4.15 1.4644e-05 4.009e-08 d yr n .2377242430825522 2.2989e-09 deg/d Q 3.037131876159363 1.958e-08 au   Orbit Determination Parameters    # obs. used (total)      310      data-arc span      6717 days (18.39 yr)      first obs. used      2001-09-11      last obs. used      2020-02-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55154      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 03:36:09   Additional Information  Earth MOID = 1.11705 au   Jupiter MOID = 2.33134 au   T_jup = 3.400  [ 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 16.2   n/a MPO469126   109944 (2001 SN43)          Discovered 2001-Sep-16 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-20 05:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin