(61404) Ocenasek Main-belt Asteroid
Discovered on 26 August 2000 by Pravec, P., Kusnirak, P. at Ondrejov.
Czech handyman Ludvík Očenášek (1872-1949) constructed a radial engine for airplanes and his own monoplane in 1905. He began systematic rocket research in 1928, and in 1930 his two-stage rockets reached an altitude of 1.5 km. He considered the launching of rockets from aircraft and the long-distance rocket delivery of mail.Naming citation (20050125/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ocenasek is today
Seen from above the solar system on 2026-10-14: Ocenasek is 2.35 au from the Sun and 2.83 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 61404 |
| Provisional designation | 2000 QM9 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.47 km (#8,278 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0670 |
| Absolute magnitude (H) | 14.86 |
| Orbital period | 4.49 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 2.07 – 3.37 au |
| Eccentricity | 0.239 |
| Inclination | 6.61° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ludvik
All asteroids named after someone called Ludvik
Also discovered on 26 August 2000
- (18193) Hollilydrury
- (18196) Rowberry
- (18950) Marakessler
- (32294) Zajonc
- (32308) Sreyavemuri
- (32381) Bellomo
- (32384) Scottbest
- (34205) Mizerak
- (34206) Zhiyuewang
- (34231) Isanisingh
- (34233) Caldwell
- (34234) Andrewfang