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392251 (2009 WS173)
Classification: Main-belt Asteroid          SPK-ID: 2392251
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1154816914759221 4.0159e-08  
a 2.200922312868742 2.1068e-08 au
q 1.946756081371561 8.9016e-08 au
i 4.430818170525938 8.45e-06 deg
node 289.8792985310083 7.0483e-05 deg
peri 104.8543557817503 8.2083e-05 deg
M 98.07158972194257 4.3896e-05 deg
tp 2458675.602618452355
(2019-Jul-11.10261845)
0.00014326 TDB
period 1192.629360743224
3.27
1.7124e-05
4.688e-08
d
yr
n .3018540477451058 4.3341e-09 deg/d
Q 2.455088544365922 2.3501e-08 au
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      4754 days (13.02 yr)  
   first obs. used      2006-12-01  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63732  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 21:26:43  

Additional Information
 Earth MOID = .958999 au 
 Jupiter MOID = 2.9191 au 
 T_jup = 3.652 
[ 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 18.6   n/a MPO349078  

392251 (2009 WS173)          Discovered 2009-Nov-22 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

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