+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100770 (1998 FG31) Classification: Main-belt Asteroid          SPK-ID: 2100770 [ 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 .164121801591414 4.7507e-08   a 2.291655538908481 7.4986e-09 au q 1.915544903235878 1.0862e-07 au i 5.754365353710575 5.0471e-06 deg node 21.11505891607795 3.1989e-05 deg peri 207.9282655823844 3.464e-05 deg M 101.4751337745318 1.106e-05 deg tp 2458643.326222411739 (2019-Jun-08.82622241) 3.9206e-05 TDB period 1267.133682400185 3.47 6.2193e-06 1.703e-08 d yr n .2841057774725817 1.3944e-09 deg/d Q 2.667766174581083 8.7293e-09 au   Orbit Determination Parameters    # obs. used (total)      884      data-arc span      7798 days (21.35 yr)      first obs. used      1998-02-27      last obs. used      2019-07-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53904      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 01:10:52   Additional Information  Earth MOID = .908061 au   Jupiter MOID = 2.32439 au   T_jup = 3.573  [ 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 MPO474882   100770 (1998 FG31)          Discovered 1998-Mar-20 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-Oct-27 09:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin