(19393) Davidthompson Main-belt Asteroid
Discovered on 27 February 1998 by E. W. Elst at La Silla.
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.Naming citation (20100726/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Davidthompson is today
Seen from above the solar system on 2026-10-14: Davidthompson is 2.34 au from the Sun and 1.80 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19393 |
| Provisional designation | 1998 DT33 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.64 |
| Orbital period | 3.69 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 2.25 – 2.53 au |
| Eccentricity | 0.0570 |
| Inclination | 5.80° |
| Closest distance between its orbit and Earth's (MOID) | 1.27 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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