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(2009 WL)
Classification: Mars-crossing Asteroid          SPK-ID: 3477569
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4549275890543792 0.0001779  
a 2.658167009910511 0.0010431 au
q 1.448893500788034 9.6742e-05 au
i 9.940066300515344 0.0029558 deg
node 93.58997488568511 0.0046086 deg
peri 329.5087940562162 0.011886 deg
M 151.7288178401283 0.52386 deg
tp 2458333.328638474044
(2018-Aug-02.82863847)
1.9108 TDB
period 1582.966858691377
4.33
0.93176
0.002551
d
yr
n .2274210594008319 0.00013386 deg/d
Q 3.867440519032988 0.0015176 au
  Orbit Determination Parameters
   # obs. used (total)      43  
   data-arc span      32 days  
   first obs. used      2009-11-16  
   last obs. used      2009-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .43313  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-08 09:03:07  

Additional Information
 Earth MOID = .473136 au 
 Jupiter MOID = 1.51295 au 
 T_jup = 3.211 
[ 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 19.048   .49571 3 autocmod 2.6i

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