+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6598997384901797 2.4569e-05   a .7308262884341012 1.5197e-08 au q .2485542118146892 1.7952e-05 au i 3.000873857857482 0.00030558 deg node 333.1104229396279 0.0010288 deg peri 35.94036212787839 0.0011153 deg M 285.692404355425 0.0031468 deg tp 2459443.603196125048 (2021-Aug-17.10319613) 0.001996 TDB period 228.2021165928443 0.62 7.1181e-06 1.949e-08 d yr n 1.577548908725978 4.9207e-08 deg/d Q 1.213098365053513 2.5226e-08 au   Orbit Determination Parameters    # obs. used (total)      63      data-arc span      3654 days (10.00 yr)      first obs. used      2011-03-06      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      3      norm. resid. RMS      .62484      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 04:52:51   Additional Information  Earth MOID = .00726529 au   Jupiter MOID = 4.25306 au   T_jup = 7.682  [ 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-Jul-30 08:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin