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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2424805571273782 1.1462e-07  
a 1.090418252540268 5.7195e-09 au
q .8260130271624417 1.2069e-07 au
i 3.373484446695503 7.8955e-06 deg
node 339.8902336765158 1.3024e-05 deg
peri 273.5679701522355 1.7249e-05 deg
M 337.252200195338 8.2068e-06 deg
tp 2459026.779977705678
(2020-Jun-26.27997771)		 9.5524e-06 TDB
period 415.8992102658208
1.14		 3.2722e-06
8.959e-09		 d
yr
n .8655943341895433 6.8103e-09 deg/d
Q 1.354823477918095 7.1063e-09 au
   Orbit Determination Parameters
   # obs. used (total)      142  
   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      .45347  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-21 06:59:41  

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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