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(2009 FW4)
Classification: Apollo [NEO]          SPK-ID: 3454733
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 2454913.5 (2009-Mar-23.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5674754331120788 0.00087833  
a 1.8585489621502 0.0033229 au
q .8038680848940105 0.00019517 au
i 3.264754255284608 0.0044398 deg
node 3.617662293867911 0.00075399 deg
peri 111.0140831163512 0.0017302 deg
M 18.66236688519626 0.057456 deg
tp 2454865.524041599590
(2009-Feb-03.02404160)
0.019038 TDB
period 925.4638026566677
2.53
2.482
0.006795
d
yr
n .3889941443053438 0.0010432 deg/d
Q 2.913229839406389 0.0052086 au
  Orbit Determination Parameters
   # obs. used (total)      64  
   data-arc span      13 days  
   first obs. used      2009-03-19  
   last obs. used      2009-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .56815  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:00:58  

Additional Information
 Earth MOID = .0068039 au 
 Jupiter MOID = 2.22725 au 
 T_jup = 3.782 
[ 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 24.6   n/a MPO156199  

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