(31152) Daishinsai Main-belt Asteroid
Discovered on 29 October 1997 by T. Okuni at Nanyo.
The Higashi Nihon Dai Shinsai earthquake of 2011 March 11 caused widespread destruction in eastern Japan and killed about 20000 people.Naming citation (20120406/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Daishinsai is today
Seen from above the solar system on 2026-10-14: Daishinsai is 1.99 au from the Sun and 2.48 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31152 |
| Provisional designation | 1997 UV21 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.49 km (#6,157 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0530 |
| Rotation period | 3.19 hours |
| Absolute magnitude (H) | 14.36 |
| Orbital period | 4.04 years |
| Semi-major axis | 2.54 au |
| Perihelion – aphelion | 1.99 – 3.08 au |
| Eccentricity | 0.217 |
| Inclination | 13.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.04 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 29 October 1997
- (10222) Klotz
- (10399) Nishiharima
- (27978) Lubosluka
- (31151) Sajichugaku
- (33056) Ogunimachi
- (35370) Daisakyu
- (39802) Ivanhlinka
- (44011) Juubichi
- (85512) Rieugnie
- (152647) Rinako