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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05729471617329722 3.9744e-08  
a 2.389250349070446 8.4944e-09 au
q 2.252358928453503 9.5189e-08 au
i 5.801946156252887 4.7931e-06 deg
node 157.2438626594527 3.3962e-05 deg
peri 340.6071270919721 4.8795e-05 deg
M 87.47904776326416 3.4306e-05 deg
tp 2458872.712445433756
(2020-Jan-24.21244543)
0.00012861 TDB
period 1348.934661053798
3.69
7.1937e-06
1.97e-08
d
yr
n .2668772701850254 1.4232e-09 deg/d
Q 2.526141769687388 8.981e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1046  
   data-arc span      10120 days (27.71 yr)  
   first obs. used      1992-09-25  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53508  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:53:27  

Additional Information
 Earth MOID = 1.26597 au 
 Jupiter MOID = 2.46835 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 15.52   n/a E2021B10  

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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