+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2011 EH17) Classification: Aten [NEO]          SPK-ID: 3558388 [ 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 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6576640471946086 0.002854   a .731105145303564 7.1552e-05 au q .2502835765184197 0.002111 au i 2.984639689400718 0.032873 deg node 333.0933397443143 0.057948 deg peri 36.01416422515376 0.095277 deg M 335.5995988456542 1.712 deg tp 2459215.976140116329 (2021-Jan-01.47614012) 1.0881 TDB period 228.3327395576963 0.63 0.03352 9.177e-05 d yr n 1.576646435799599 0.00023145 deg/d Q 1.211926714088708 0.00011861 au   Orbit Determination Parameters    # obs. used (total)      22      data-arc span      3 days      first obs. used      2011-03-06      last obs. used      2011-03-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .58769      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 08:54:13   Additional Information  Earth MOID = .00733545 au   Jupiter MOID = 4.25351 au   T_jup = 7.681  [ 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 24.6   n/a MPO196819   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-04 20:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin