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19393 Davidthompson (1998 DT33)
Classification: Main-belt Asteroid          SPK-ID: 2019393
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05740839120617022 3.9783e-08  
a 2.389527135374888 8.5749e-09 au
q 2.252348226789528 9.5367e-08 au
i 5.801769267088528 4.7971e-06 deg
node 157.2431203714055 3.4166e-05 deg
peri 340.677594818224 4.8939e-05 deg
M 34.03084136678204 3.436e-05 deg
tp 2458872.962892604006
(2020-Jan-24.46289260)
0.00012879 TDB
period 1349.169071892961
3.69
7.2623e-06
1.988e-08
d
yr
n .2668309017007776 1.4363e-09 deg/d
Q 2.526706043960249 9.0671e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1034  
   data-arc span      10075 days (27.58 yr)  
   first obs. used      1992-09-25  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53326  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:00:50  

Additional Information
 Earth MOID = 1.26606 au 
 Jupiter MOID = 2.46865 au 
 T_jup = 3.524 
[ 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 15.5   n/a MPO263521  

19393 Davidthompson           Discovered 1998 Feb. 27 by E. W. Elst at the European Southern Observatory.
David Thompson (1770-1857), a British-Canadian furtrader and surveyor, mapped 3.9 million square kilometers of North America. Navigating the full length of the Columbia River in 1811, he produced a high-quality map of the river basin. He has been called the greatest land geographer who ever lived.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100726/MPCPages.arcLast Updated: 2010-07-28

Alternate Designations
 1998 DT33 = 1992 SL5 = 1996 TY37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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