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(2011 EX4)
Classification: Aten [NEO]          SPK-ID: 3558372
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2736797492630819 8.7492e-07  
a .8557256467990313 3.0416e-08 au
q .6215308663450838 7.7061e-07 au
i 3.021402317501561 3.541e-05 deg
node 152.8762332640012 0.0001597 deg
peri 219.177589763721 6.5125e-05 deg
M 14.20684407856428 0.0001868 deg
tp 2458989.089744673981
(2020-May-19.58974467)
0.00015002 TDB
period 289.1347222966151
0.79
1.5415e-05
4.22e-08
d
yr
n 1.245094318456454 6.6383e-08 deg/d
Q 1.089920427252979 3.874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      1508 days (4.13 yr)  
   first obs. used      2011-03-02  
   last obs. used      2015-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .67843  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:54:18  

Additional Information
 Earth MOID = .00367183 au 
 Jupiter MOID = 4.33319 au 
 T_jup = 6.860 
[ 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 MPO336542  

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