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(2009 EH1)
Classification: Apollo [NEO]          SPK-ID: 3449132
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 2454894.5 (2009-Mar-04.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3494086615411397 0.00098074  
a 1.167600891109577 0.00094223 au
q .7596310265327375 0.00053299 au
i 1.159701311287615 0.0060285 deg
node 158.6245740862109 0.0085732 deg
peri 93.55008026248291 0.006305 deg
M 310.1465458971693 0.0936 deg
tp 2454958.316474263654
(2009-May-06.81647426)
0.042632 TDB
period 460.8292674671663
1.26
0.55782
0.001527
d
yr
n .7812003824727771 0.00094562 deg/d
Q 1.575570755686416 0.0012715 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      2 days  
   first obs. used      2009-03-03  
   last obs. used      2009-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .51111  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:01:05  

Additional Information
 Earth MOID = .000347682 au 
 Jupiter MOID = 3.46128 au 
 T_jup = 5.344 
[ 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 27.9   n/a MPO154268  

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