+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70113 (1999 LY9) Classification: Main-belt Asteroid          SPK-ID: 2070113 [ 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 .1618175696000895 4.3738e-08   a 2.23244208887336 8.0445e-09 au q 1.871193735778926 1.0079e-07 au i 6.782070173068406 3.8911e-06 deg node 187.3224359065609 3.1649e-05 deg peri 150.5833438424393 3.4006e-05 deg M 36.54421938318147 1.2355e-05 deg tp 2458876.824145916034 (2020-Jan-28.32414592) 4.1627e-05 TDB period 1218.340635584037 3.34 6.5853e-06 1.803e-08 d yr n .2954838650911668 1.5971e-09 deg/d Q 2.593690441967794 9.3462e-09 au   Orbit Determination Parameters    # obs. used (total)      745      data-arc span      10450 days (28.61 yr)      first obs. used      1992-04-05      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56118      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:54:19   Additional Information  Earth MOID = .866053 au   Jupiter MOID = 2.80226 au   T_jup = 3.615  [ 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 16.0   n/a MPO436272   70113 (1999 LY9)          Discovered 1999-Jun-08 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-26 07:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin