(399673) Kadenyuk Main-belt Asteroid
Discovered on 19 September 2004 by Andrushivka at Andrushivka.
Leonid Kostyantynovych Kadenyuk (b. 1951) is a Ukrainian astronaut. He made his only spaceflight as Payload Specialist on NASA's STS-87 Columbia mission in 1997.Naming citation (MPC batch dated 2017-10-05), IAU / Minor Planet Center, via NASA/JPL
Where Kadenyuk is today
Seen from above the solar system on 2026-10-14: Kadenyuk is 2.68 au from the Sun and 1.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 399673 |
| Provisional designation | 2004 SW19 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.72 |
| Orbital period | 5.39 years |
| Semi-major axis | 3.07 au |
| Perihelion – aphelion | 2.65 – 3.49 au |
| Eccentricity | 0.137 |
| Inclination | 12.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.69 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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