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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03769902413805715 5.1962e-08  
a 2.634065291949887 3.1964e-08 au
q 2.53476360092745 1.4741e-07 au
i 5.106639910671321 5.9906e-06 deg
node 66.60111130294763 9.7156e-05 deg
peri 7.907635195065454 0.00016979 deg
M 61.94313158486311 0.00013772 deg
tp 2458331.823991602903
(2018-Aug-01.32399160)
0.00059758 TDB
period 1561.486488464704
4.28
2.8422e-05
7.782e-08
d
yr
n .2305495453591545 4.1965e-09 deg/d
Q 2.733366982972325 3.3169e-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 = 1.54931 au 
 Jupiter MOID = 2.36441 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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