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JPL Small-Body Database Browser
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379319 (2009 WA28)
Classification: Main-belt Asteroid          SPK-ID: 2379319
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03750408961222099 5.1947e-08  
a 2.633833244126194 3.1643e-08 au
q 2.535053726114838 1.471e-07 au
i 5.106532190636866 5.9905e-06 deg
node 66.59953158832153 9.7164e-05 deg
peri 7.603565674078347 0.0001705 deg
M 154.5031259932688 0.0001385 deg
tp 2458330.437043307296
(2018-Jul-30.93704331)
0.00060105 TDB
period 1561.280154421489
4.27
2.8136e-05
7.703e-08
d
yr
n .2305800140868332 4.1552e-09 deg/d
Q 2.73261276213755 3.2829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      6668 days (18.26 yr)  
   first obs. used      2000-10-07  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54572  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:43:35  

Additional Information
 Earth MOID = 1.54978 au 
 Jupiter MOID = 2.36356 au 
 T_jup = 3.392 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO427885  

379319 (2009 WA28)          Discovered 2007-Mar-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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