+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1640599213958612 4.4964e-08   a 2.29155879726104 7.0266e-09 au q 1.915605841108399 1.0197e-07 au i 5.754419831949022 5.0334e-06 deg node 21.11453929737037 2.8926e-05 deg peri 207.8913783537625 3.0999e-05 deg M 158.3509006213946 1.017e-05 deg tp 2458643.169293732103 (2019-Jun-08.66929373) 3.5822e-05 TDB period 1267.053445664676 3.47 5.8277e-06 1.596e-08 d yr n .284123768600108 1.3068e-09 deg/d Q 2.667511753413681 8.1794e-09 au   Orbit Determination Parameters    # obs. used (total)      985      data-arc span      8317 days (22.77 yr)      first obs. used      1998-02-27      last obs. used      2020-12-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52673      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:26:08   Additional Information  Earth MOID = .906909 au   Jupiter MOID = 2.32342 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 ] 2021-Mar-01 16:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin