(22952) Hommasachi Main-belt Asteroid
Discovered on 5 October 1999 by LONEOS at Anderson Mesa.
Sachiko Homma (b. 1965), of the Japan Aerospace Exploration Agency, is the secretary of Makoto Yoshikawa, project scientist for the Hayabusa mission.Naming citation (20120506/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hommasachi is today
Seen from above the solar system on 2026-10-14: Hommasachi is 2.63 au from the Sun and 3.62 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22952 |
| Provisional designation | 1999 TF243 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.94 km (#7,732 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0580 |
| Absolute magnitude (H) | 14.52 |
| Orbital period | 4.06 years |
| Semi-major axis | 2.55 au |
| Perihelion – aphelion | 1.84 – 3.25 au |
| Eccentricity | 0.278 |
| Inclination | 13.1° |
| Closest distance between its orbit and Earth's (MOID) | 0.841 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Sachiko
All asteroids named after someone called Sachiko
Also discovered on 5 October 1999
- (21811) Burroughs
- (40763) Zloch
- (40775) Kalafina
- (40795) Akiratsuchiyama
- (91607) Delaboudiniere
- (102234) Olivebyrne