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JPL Small-Body Database Browser
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(2008 EA9)
Classification: Apollo [NEO]          SPK-ID: 3405189
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07978284369343143 4.0298e-05  
a 1.059147776877847 3.5628e-05 au
q .9746459553469565 9.9249e-06 au
i .4249435001641062 0.00024671 deg
node 129.5109158613622 0.0025232 deg
peri 335.8457420001734 0.0027922 deg
M 132.3816997793427 0.19525 deg
tp 2458454.094053134546
(2018-Dec-01.59405313)
0.20855 TDB
period 398.137665246899
1.09
0.020089
5.5e-05
d
yr
n .9042098535860743 4.5624e-05 deg/d
Q 1.143649598408738 3.847e-05 au
  Orbit Determination Parameters
   # obs. used (total)      56  
   data-arc span      28 days  
   first obs. used      2008-03-06  
   last obs. used      2008-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .82343  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:04:05  

Additional Information
 Earth MOID = .001041 au 
 Jupiter MOID = 3.88232 au 
 T_jup = 5.812 
[ 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 27.7   n/a MPO140737  

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