+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190840 (2001 SA105) Classification: Main-belt Asteroid          SPK-ID: 2190840 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1810751784313066 4.0069e-08   a 2.315508552659305 9.8415e-09 au q 1.896227428327305 9.3169e-08 au i 6.143205285460272 4.9799e-06 deg node 240.711956608972 4.934e-05 deg peri 178.7789951382057 5.1595e-05 deg M 128.844399601141 1.6244e-05 deg tp 2458739.892445750793 (2019-Sep-13.39244575) 5.7034e-05 TDB period 1286.96877817766 3.52 8.2049e-06 2.246e-08 d yr n .2797270657255243 1.7834e-09 deg/d Q 2.734789676991306 1.1624e-08 au   Orbit Determination Parameters    # obs. used (total)      574      data-arc span      6784 days (18.57 yr)      first obs. used      2001-08-28      last obs. used      2020-03-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56373      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 06:57:44   Additional Information  Earth MOID = .908068 au   Jupiter MOID = 2.59704 au   T_jup = 3.552  [ 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 16.56   n/a E2021B55   190840 (2001 SA105)          Discovered 2001-Sep-20 by LINEAR at Socorro Reference: 20080917/Numbers.arc Last Updated: 2008-09-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 00:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin