(9573) Matsumotomas Main-belt Asteroid
Discovered on 16 October 1988 by Endate, K., Watanabe, K. at Kitami.
Masaru Matsumoto (b. 1936) lived in the house in Mihonseki, Shimane prefecture, that was struck by a 6.4-kg meteorite on 1992 Dec. 10.Naming citation (20030318/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Matsumotomas is today
Seen from above the solar system on 2026-10-14: Matsumotomas is 3.00 au from the Sun and 3.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9573 |
| Provisional designation | 1988 UC |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.81 km (#7,865 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.240 |
| Absolute magnitude (H) | 13.36 |
| Orbital period | 4.97 years |
| Semi-major axis | 2.91 au |
| Perihelion – aphelion | 2.64 – 3.19 au |
| Eccentricity | 0.0943 |
| Inclination | 2.53° |
| Closest distance between its orbit and Earth's (MOID) | 1.63 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Masaru
All asteroids named after someone called Masaru