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266399 (2007 EA187)
Classification: Main-belt Asteroid          SPK-ID: 2266399
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06519553161677752 7.2513e-08  
a 2.721560819605166 2.6575e-08 au
q 2.544127215143615 2.0018e-07 au
i 6.852586579257848 5.2525e-06 deg
node 129.3150666888292 5.3112e-05 deg
peri 263.0393427564225 7.3589e-05 deg
M 112.4786635927151 4.6519e-05 deg
tp 2458488.118854962444
(2019-Jan-04.61885496)
0.00021264 TDB
period 1639.930688378723
4.49
2.402e-05
6.576e-08
d
yr
n .2195214727982834 3.2153e-09 deg/d
Q 2.898994424066718 2.8308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      6594 days (18.05 yr)  
   first obs. used      2002-01-13  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55426  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:46:58  

Additional Information
 Earth MOID = 1.5606 au 
 Jupiter MOID = 2.38608 au 
 T_jup = 3.345 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO454980  

266399 (2007 EA187)          Discovered 2007-Mar-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2007 EA187 = 2002 AF145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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