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332794 (2009 WB38)
Classification: Main-belt Asteroid          SPK-ID: 2332794
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2158995168705796 4.997e-08  
a 2.586693454547861 2.4103e-08 au
q 2.028227587418687 1.2826e-07 au
i 6.398816790396227 6.3329e-06 deg
node 269.2152312923051 6.4758e-05 deg
peri 51.26538375943124 6.7689e-05 deg
M 274.3480100443321 2.2405e-05 deg
tp 2459362.035401435020
(2021-May-27.53540144)
9.641e-05 TDB
period 1519.553072660333
4.16
2.1239e-05
5.815e-08
d
yr
n .2369117647004825 3.3114e-09 deg/d
Q 3.145159321677034 2.9307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      7189 days (19.68 yr)  
   first obs. used      2000-08-21  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68663  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 21:31:20  

Additional Information
 Earth MOID = 1.02245 au 
 Jupiter MOID = 2.19134 au 
 T_jup = 3.380 
[ 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 16.8   n/a MPO427709  

332794 (2009 WB38)          Discovered 2009-Nov-17 by Spacewatch at Kitt Peak
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 2009 WB38 = 2004 NO11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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