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(2011 ES4)
Classification: Apollo [NEO]          SPK-ID: 3558279
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2424805572334256 1.1464e-07  
a 1.090418252539827 5.7199e-09 au
q .8260130270464717 1.2071e-07 au
i 3.373484476689725 7.8972e-06 deg
node 339.8902336353315 1.3029e-05 deg
peri 273.5679702062047 1.7253e-05 deg
M 337.2522001797245 8.208e-06 deg
tp 2459026.779977723700
(2020-Jun-26.27997772)
9.5539e-06 TDB
period 415.8992102655685
1.14
3.2725e-06
8.96e-09
d
yr
n .8655943341900683 6.8109e-09 deg/d
Q 1.354823478033183 7.1069e-09 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      3489 days (9.55 yr)  
   first obs. used      2011-02-23  
   last obs. used      2020-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45812  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-12 06:49:36  

Additional Information
 Earth MOID = .00062975 au 
 Jupiter MOID = 3.68081 au 
 T_jup = 5.659 
[ 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 25.4   n/a E2020-AB4  

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