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20039 (1992 WJ)
Classification: Main-belt Asteroid          SPK-ID: 2020039
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1524027450963024 3.5089e-08  
a 2.42355705039079 7.3442e-09 au
q 2.054200303013736 8.3683e-08 au
i 2.560773034436832 3.4372e-06 deg
node 26.06787225297605 8.5215e-05 deg
peri 86.45219774701926 8.6261e-05 deg
M 114.7625853071137 1.2598e-05 deg
tp 2458761.184910577927
(2019-Oct-04.68491058)
4.7831e-05 TDB
period 1378.092274313228
3.77
6.2641e-06
1.715e-08
d
yr
n .2612306931184313 1.1874e-09 deg/d
Q 2.792913797767843 8.4635e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1902  
   data-arc span      24015 days (65.75 yr)  
   first obs. used      1954-09-06  
   last obs. used      2020-06-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47525  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:11:53  

Additional Information
 Earth MOID = 1.07253 au 
 Jupiter MOID = 2.30785 au 
 T_jup = 3.495 
[ 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 14.66   n/a E2021B10  

20039 (1992 WJ)          Discovered 1992-Nov-16 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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