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(2011 EN40)
Classification: Apollo [NEO]          SPK-ID: 3559598
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7390800980034641 2.2499e-07  
a 1.287518812910378 8.5691e-08 au
q .3359392824832721 2.6809e-07 au
i 13.40559517212808 1.3841e-05 deg
node 148.5610105059239 7.3191e-05 deg
peri 164.6433533192142 9.0644e-05 deg
M 186.9770405881664 0.00013638 deg
tp 2459456.966141198567
(2021-Aug-30.46614120)
0.00022766 TDB
period 533.6159498446859
1.46
5.3272e-05
1.459e-07
d
yr
n .6746425029176536 6.7352e-08 deg/d
Q 2.239098343337484 1.4902e-07 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      1768 days (4.84 yr)  
   first obs. used      2011-03-10  
   last obs. used      2016-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .37433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 04:53:22  

Additional Information
 Earth MOID = .150021 au 
 Jupiter MOID = 3.09142 au 
 T_jup = 4.693 
[ 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 20.6   n/a MPO294862  

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