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(2011 EC)
Classification: Apollo [NEO]          SPK-ID: 3558197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3637869488842082 0.00061951  
a 1.50534269864856 0.0013936 au
q .9577186712820805 4.5972e-05 au
i 1.080664441521564 0.001392 deg
node 167.6129364978192 0.0025465 deg
peri 33.44916286550461 0.0035797 deg
M 344.7432852849194 2.4829 deg
tp 2459029.089727913749
(2020-Jun-28.58972791)
4.6924 TDB
period 674.6080162838847
1.85
0.93677
0.002565
d
yr
n .5336432288235763 0.00074102 deg/d
Q 2.05296672601504 0.0019005 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      32 days  
   first obs. used      2011-02-02  
   last obs. used      2011-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .2789  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:54:20  

Additional Information
 Earth MOID = .00105727 au 
 Jupiter MOID = 2.90392 au 
 T_jup = 4.458 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455603.5 (2011-Feb-11.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .366042824371717 0.00062031  
q .9574219777842555 5.3573e-05 au
tp 2455655.752338126375
(2011-Apr-04.25233813)
0.0033095 TDB
node 167.670788166571 0.0021773 deg
peri 33.15000692493051 0.0045751 deg
i 1.078709487850532 0.0013995 deg
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      32 days  
   first obs. used      2011-02-02  
   last obs. used      2011-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .2789  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:54:20  

Additional Information
 Jupiter MOID = 2.90392 au 
 T_jup = 4.458 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.847849706748851E-7 -3.323144136114255E-8 -2.052482691115619E-6 1.349085098415839E-6 2.836501359700325E-6 8.681119185888223E-7
q -3.323144136114255E-8 2.870101095091985E-9 1.772381531812451E-7 -1.165044308154922E-7 -2.45007269358355E-7 -7.49737308325414E-8
tp -2.052482691115619E-6 1.772381531812451E-7 1.09526280836937E-5 -7.197480195483136E-6 -1.512293437854325E-5 -4.630514886327888E-6
node 1.349085098415839E-6 -1.165044308154922E-7 -7.197480195483136E-6 4.740451578611114E-6 9.932745305890398E-6 3.043003589264421E-6
peri 2.836501359700325E-6 -2.45007269358355E-7 -1.512293437854325E-5 9.932745305890398E-6 2.093161448087402E-5 6.400192687307751E-6
i 8.681119185888223E-7 -7.49737308325414E-8 -4.630514886327888E-6 3.043003589264421E-6 6.400192687307751E-6 1.958637761661002E-6

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 25.5   n/a MPO196818  

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