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206241 Dubois (2002 WM28)
Classification: Main-belt Asteroid          SPK-ID: 2206241
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1619819718125869 4.3272e-08  
a 3.117748115037039 2.5446e-08 au
q 2.612729127748363 1.3607e-07 au
i 5.520988003507822 5.5622e-06 deg
node 135.7349673841248 5.3808e-05 deg
peri 303.9455527134223 5.7559e-05 deg
M 91.30079575743915 1.8937e-05 deg
tp 2458690.544797385972
(2019-Jul-26.04479739)
0.00010427 TDB
period 2010.758738935656
5.51
2.4616e-05
6.739e-08
d
yr
n .1790368943966678 2.1918e-09 deg/d
Q 3.622767102325714 2.9567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      6710 days (18.37 yr)  
   first obs. used      2002-10-31  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5964  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:13:12  

Additional Information
 Earth MOID = 1.63311 au 
 Jupiter MOID = 1.64185 au 
 T_jup = 3.190 
[ 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 16.03   n/a E2021B55  

206241 Dubois           Discovered 2002 Nov. 24 by NEAT at Palomar.
Dutch anatomist, surgeon and paleontologist Marie Eugène François Thomas Dubois (1858-1940) was the "founding father" of palaeoanthropology. His dedicated search culminated in 1891 with the discovery of the first Homo erectus fossils in a bank of the Solo river near Trinil, Java. The name was suggested by M. Langbroek.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

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