(213197) Lessac-Chenen Main-belt Asteroid
Discovered on 20 September 2000 by M. W. Buie at Kitt Peak.
Erik J. Lessac-Chenen (b. 1982) is an American engineer at KinetX Aerospace, Inc. He served as an optical navigation analyst for the NASA New Horizons Mission to the Kuiper belt object Arrokoth.Naming citation (WGSBN Bull. 4, #4, 11), IAU / Minor Planet Center, via NASA/JPL
Where Lessac-Chenen is today
Seen from above the solar system on 2026-10-14: Lessac-Chenen is 3.68 au from the Sun and 3.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 213197 |
| Provisional designation | 2000 SW345 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.77 km (#15,711 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0400 |
| Absolute magnitude (H) | 17.05 |
| Orbital period | 4.89 years |
| Semi-major axis | 2.88 au |
| Perihelion – aphelion | 2.01 – 3.75 au |
| Eccentricity | 0.302 |
| Inclination | 6.79° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Erik
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- (7939) Asphaug
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- (15170) Erikdeul
- (15621) Erikhovland
- (23801) Erikgustafson
- (24066) Eriksorensen
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All asteroids named after someone called Erik