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(2002 EW8)
Classification: Apollo [NEO]          SPK-ID: 3117430
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 .459262978600522 2.3202e-07  
a 1.848001532136316 3.8754e-09 au
q .9992828440290631 4.3028e-07 au
i 11.35915261579016 2.5784e-05 deg
node 176.5873499074419 1.0476e-05 deg
peri 328.5295898255793 0.00011084 deg
M 102.9535821464176 4.1884e-05 deg
tp 2458738.083657259449
(2019-Sep-11.58365726)
0.00010608 TDB
period 917.5968569237939
2.51
2.8864e-06
7.903e-09
d
yr
n .392329155536654 1.2341e-09 deg/d
Q 2.696720220243568 5.6552e-09 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      1834 days (5.02 yr)  
   first obs. used      2002-03-13  
   last obs. used      2007-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53393  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:15:21  

Additional Information
 Earth MOID = .0425236 au 
 Jupiter MOID = 2.3566 au 
 T_jup = 3.854 
[ 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 23.5   n/a MPO117434  

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