+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   227296 (2005 SY224) Classification: Main-belt Asteroid          SPK-ID: 2227296 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1493395938441682 4.843e-08   a 2.409509093058567 1.3009e-08 au q 2.04967398373737 1.2284e-07 au i 3.446790104858763 4.9737e-06 deg node 81.33335308311375 0.00010345 deg peri 16.06229306060255 0.00010707 deg M 321.249466532721 2.6072e-05 deg tp 2459347.550486675093 (2021-May-13.05048667) 9.9068e-05 TDB period 1366.127649513119 3.74 1.1064e-05 3.029e-08 d yr n .2635185666056186 2.1341e-09 deg/d Q 2.769344202379763 1.4952e-08 au   Orbit Determination Parameters    # obs. used (total)      362      data-arc span      9034 days (24.73 yr)      first obs. used      1996-04-18      last obs. used      2021-01-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61102      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:11:25   Additional Information  Earth MOID = 1.06655 au   Jupiter MOID = 2.38579 au   T_jup = 3.503  [ 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 16.8   n/a MPO270904   227296 (2005 SY224)          Discovered 2005-Sep-29 by Spacewatch at Kitt Peak Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 17:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin