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JPL Small-Body Database Browser
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(2011 EC12)
Classification: Apollo [NEO]          SPK-ID: 3558381
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 .4510496982363412 0.00058735  
a 1.010098116675219 0.0003647 au
q .5544936659597648 0.00039308 au
i 11.55923398285822 0.020088 deg
node 346.5538068846661 0.00099305 deg
peri 295.80713700 0.0023592 deg
M 303.8485446038866 1.5133 deg
tp 2458658.336537535964
(2019-Jun-23.83653754)
1.59 TDB
period 370.8034523070979
1.02
0.20082
0.0005498
d
yr
n .9708647472404047 0.00052581 deg/d
Q 1.465702567390673 0.0005292 au
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      3 days  
   first obs. used      2011-03-05  
   last obs. used      2011-03-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .32597  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:54:16  

Additional Information
 Earth MOID = .00324152 au 
 Jupiter MOID = 3.72825 au 
 T_jup = 5.922 
[ 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 25.8   n/a MPO196819  

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