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JPL Small-Body Database Browser
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(2011 EC)
Classification: Apollo [NEO]          SPK-ID: 3558197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3639467049334644 0.00062218  
a 1.505244320264309 0.0013938 au
q .9574156097843013 5e-05 au
i 1.080710194892201 0.0013952 deg
node 167.6192639339716 0.0024414 deg
peri 33.44620439370316 0.0037722 deg
M 131.283321221273 2.1866 deg
tp 2458354.510835818445
(2018-Aug-24.01083582)
3.7555 TDB
period 674.5418860641238
1.85
0.93691
0.002565
d
yr
n .5336955457289089 0.00074128 deg/d
Q 2.053073030744316 0.0019011 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      32 days  
   first obs. used      2011-02-02  
   last obs. used      2011-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .2789  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:54:20  

Additional Information
 Earth MOID = .00110288 au 
 Jupiter MOID = 2.90488 au 
 T_jup = 4.459 
[ 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 25.5   n/a MPO196818  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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