(10390) Lenka Main-belt Asteroid
Discovered on 27 August 1997 by Pravec, P., Wolf, M. at Ondrejov.
Named in honor of Lenka Šarounová (b. 1973), an assiduous observer at the Ondřejov Observatory. She has a broad range of interests, from astronomy and meteorology to music. She loves gaining new experiences through traveling and meeting people. Her photometric and astrometric observations of minor planets became an integral part of the discoverers' research project on NEOs.Naming citation (19990728/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Lenka is today
Seen from above the solar system on 2026-10-14: Lenka is 2.04 au from the Sun and 1.83 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10390 |
| Provisional designation | 1997 QD1 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 130 hours |
| Absolute magnitude (H) | 15.24 |
| Orbital period | 3.14 years |
| Semi-major axis | 2.14 au |
| Perihelion – aphelion | 2.02 – 2.27 au |
| Eccentricity | 0.0586 |
| Inclination | 3.89° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.