+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2005 SP9) Classification: Aten [NEO]          SPK-ID: 3291224 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6237184703779829 1.0638e-06   a .8657450517278984 1.7788e-08 au q .3257638723268659 9.1844e-07 au i 27.74462181832995 9.8347e-05 deg node 354.8264973595721 6.1846e-05 deg peri 228.1292135596677 6.2503e-05 deg M 42.08400803944491 0.00020158 deg tp 2459166.104783461028 (2020-Nov-12.60478346) 0.0001638 TDB period 294.2276301825619 0.81 9.0679e-06 2.483e-08 d yr n 1.223542465323966 3.7709e-08 deg/d Q 1.405726231128931 2.8882e-08 au   Orbit Determination Parameters    # obs. used (total)      65      data-arc span      1840 days (5.04 yr)      first obs. used      2005-09-25      last obs. used      2010-10-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      1      norm. resid. RMS      .57428      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 09:10:26   Additional Information  Earth MOID = .0518292 au   Jupiter MOID = 3.68082 au   T_jup = 6.575  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 21.2   n/a MPO186972   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-04 19:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin