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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05708020170289827 3.9709e-08  
a 2.389813801735079 8.3784e-09 au
q 2.25340274789967 9.4976e-08 au
i 5.802094500990219 4.7865e-06 deg
node 157.2397446298561 3.3934e-05 deg
peri 340.7802340044807 4.8828e-05 deg
M 139.6213004758207 3.4377e-05 deg
tp 2458873.148223898646
(2020-Jan-24.64822390)
0.00012891 TDB
period 1349.411864482063
3.69
7.0963e-06
1.943e-08
d
yr
n .2667828922181418 1.403e-09 deg/d
Q 2.526224855570487 8.8566e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1051  
   data-arc span      10488 days (28.71 yr)  
   first obs. used      1992-09-25  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53577  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:10:01  

Additional Information
 Earth MOID = 1.26778 au 
 Jupiter MOID = 2.46726 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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