+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   469925 (2005 YO209) Classification: Inner Main-belt Asteroid          SPK-ID: 2469925 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08787203906625292 8.8744e-08   a 1.993555526667838 1.785e-08 au q 1.818377737547737 1.898e-07 au i 16.76792731291502 5.838e-06 deg node 262.1864474313066 2.2911e-05 deg peri 190.5740997862555 7.6564e-05 deg M 25.30634028505486 6.5411e-05 deg tp 2458928.228382525030 (2020-Mar-19.72838253) 0.00018712 TDB period 1028.113192106027 2.81 1.3808e-05 3.78e-08 d yr n .3501559971840863 4.7027e-09 deg/d Q 2.168733315787938 1.9418e-08 au   Orbit Determination Parameters    # obs. used (total)      177      data-arc span      5189 days (14.21 yr)      first obs. used      2005-11-12      last obs. used      2020-01-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47507      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 14:00:10   Additional Information  Earth MOID = .836077 au   Jupiter MOID = 3.03594 au   T_jup = 3.791  [ 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 17.4   n/a MPO503639   469925 (2005 YO209)          Discovered 2005-Dec-24 by CSS at Catalina Reference: Last Updated: 2016-08-22 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-25 20:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin