+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100920 (1998 KT56) Classification: Main-belt Asteroid          SPK-ID: 2100920 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1565105605832679 4.5011e-08   a 2.281920974599277 1.3413e-08 au q 1.924776243658027 1.0372e-07 au i 6.080608234324501 5.0115e-06 deg node 79.59465573629697 5.997e-05 deg peri 195.8901559079993 6.5182e-05 deg M 103.1967677434624 3.104e-05 deg tp 2458639.578360648311 (2019-Jun-05.07836065) 0.00010657 TDB period 1259.068408902169 3.45 1.1101e-05 3.039e-08 d yr n .2859256871625411 2.521e-09 deg/d Q 2.639065705540527 1.5513e-08 au   Orbit Determination Parameters    # obs. used (total)      403      data-arc span      7216 days (19.76 yr)      first obs. used      1998-04-21      last obs. used      2018-01-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .65782      source      ORB      producer      Otto Matic      solution date      2018-Feb-05 23:12:42   Additional Information  Earth MOID = .909273 au   Jupiter MOID = 2.46681 au   T_jup = 3.581  [ 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 16.3   n/a MPO493566   100920 (1998 KT56)          Discovered 1998-May-23 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-23 21:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin