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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458659.5 (2019-Jun-25.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2424841086765401 1.147e-07  
q .8259724637473441 1.2073e-07 au
tp 2458610.917954252049
(2019-May-07.41795425)		 8.9193e-06 TDB
node 339.8986190896534 1.3022e-05 deg
peri 273.5646584574761 1.7255e-05 deg
i 3.373553879984803 7.8954e-06 deg
   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
 Jupiter MOID = 3.68081 au 
 T_jup = 5.659 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.315584482576431E-14 -1.384691910386448E-14 9.28694078998269E-14 5.160491864607162E-13 -1.562857580400093E-12 1.449537336461176E-13
q -1.384691910386448E-14 1.457457651270839E-14 -1.008758058898806E-13 -5.45095254579918E-13 1.643801571248062E-12 -1.520434515817081E-13
tp 9.28694078998269E-14 -1.008758058898806E-13 7.955395171408607E-11 6.170894561200941E-11 1.155178306065592E-11 -5.649659946115764E-12
node 5.160491864607162E-13 -5.45095254579918E-13 6.170894561200941E-11 1.695618144842915E-10 -1.506343212178961E-10 6.689198258976685E-11
peri -1.562857580400093E-12 1.643801571248062E-12 1.155178306065592E-11 -1.506343212178961E-10 2.977363199116501E-10 -8.493091667570979E-11
i 1.449537336461176E-13 -1.520434515817081E-13 -5.649659946115764E-12 6.689198258976685E-11 -8.493091667570979E-11 6.233774561142214E-11

[ 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 ]
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