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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05740839192166411 3.9755e-08  
a 2.389527134684358 8.5342e-09 au
q 2.252348224428947 9.527e-08 au
i 5.80176942346389 4.7929e-06 deg
node 157.2431174196587 3.3962e-05 deg
peri 340.6775954746053 4.8725e-05 deg
M 34.0308440929119 3.4222e-05 deg
tp 2458872.962882442595
(2020-Jan-24.46288244)
0.00012828 TDB
period 1349.169071308132
3.69
7.2279e-06
1.979e-08
d
yr
n .2668309018164418 1.4295e-09 deg/d
Q 2.526706044939768 9.0242e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:09:02  

Additional Information
 Earth MOID = 1.26606 au 
 Jupiter MOID = 2.46865 au 
 T_jup = 3.524 
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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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