+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190374 (1999 RG86) Classification: Main-belt Asteroid          SPK-ID: 2190374 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1929430676976744 7.3073e-08   a 2.704593337032302 1.67e-08 au q 2.182760801710599 1.958e-07 au i 11.86974445591428 7.6474e-06 deg node 11.64840206297188 2.2499e-05 deg peri 16.73136984374531 2.5635e-05 deg M 257.2850771755112 1.293e-05 deg tp 2459664.034892296013 (2022-Mar-25.53489230) 6.0824e-05 TDB period 1624.618474490834 4.45 1.5048e-05 4.12e-08 d yr n .2215904876453079 2.0524e-09 deg/d Q 3.226425872354005 1.9923e-08 au   Orbit Determination Parameters    # obs. used (total)      489      data-arc span      7588 days (20.77 yr)      first obs. used      1999-09-05      last obs. used      2020-06-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47884      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 22:07:22   Additional Information  Earth MOID = 1.18824 au   Jupiter MOID = 2.25183 au   T_jup = 3.308  [ 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 15.65   n/a E2021B55   190374 (1999 RG86)          Discovered 1999-Sep-07 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-23 18:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin