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266908 (2009 WX209)
Classification: Outer Main-belt Asteroid          SPK-ID: 2266908
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05692900121260226 8.0871e-08  
a 4.019197354683111 7.6267e-08 au
q 3.790388463604668 3.4802e-07 au
i 3.579373342543288 8.5935e-06 deg
node 205.7307142888142 9.8366e-05 deg
peri 291.5205349738967 0.00015683 deg
M 39.14126960271513 0.00011299 deg
tp 2458680.507475677700
(2019-Jul-16.00747568)
0.00092626 TDB
period 2943.116304741351
8.06
8.3772e-05
2.294e-07
d
yr
n .1223193250705183 3.4816e-09 deg/d
Q 4.248006245761554 8.0609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      5906 days (16.17 yr)  
   first obs. used      2004-03-15  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63944  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:22:46  

Additional Information
 Earth MOID = 2.80608 au 
 Jupiter MOID = .808688 au 
 T_jup = 3.046 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO433732  

266908 (2009 WX209)          Discovered 2009-Nov-18 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 WX209 = 2004 EK30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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