+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101207 (1998 SB47) Classification: Main-belt Asteroid          SPK-ID: 2101207 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05763809325946263 4.1477e-08   a 2.743532690104876 1.4784e-08 au q 2.585400697052227 1.2055e-07 au i 5.578124150330245 3.8952e-06 deg node 202.035196376715 4.4816e-05 deg peri 178.359853800503 6.0076e-05 deg M 283.7395652392734 4.0549e-05 deg tp 2459352.109347271676 (2021-May-17.60934727) 0.00018785 TDB period 1659.830099513026 4.54 1.3417e-05 3.673e-08 d yr n .2168896684700559 1.7532e-09 deg/d Q 2.901664683157526 1.5637e-08 au   Orbit Determination Parameters    # obs. used (total)      731      data-arc span      8060 days (22.07 yr)      first obs. used      1998-09-25      last obs. used      2020-10-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57421      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:01:51   Additional Information  Earth MOID = 1.58758 au   Jupiter MOID = 2.37205 au   T_jup = 3.340  [ 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 15.3   n/a MPO259930   101207 (1998 SB47)          Discovered 1998-Sep-25 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-01 00:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin