(21464) Chinaroonchai Main-belt Asteroid
Discovered on 21 April 1998 by LINEAR at Socorro.
Tanongsak Chinaroonchai (b. 1987) was awarded second place in the 2006 Intel International Science and Engineering Fair for his botany team project. He attends the Triam Udom Suksa School, Bangkok, Thailand.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Chinaroonchai is today
Seen from above the solar system on 2026-10-14: Chinaroonchai is 2.03 au from the Sun and 1.39 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21464 |
| Provisional designation | 1998 HH88 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.09 |
| Orbital period | 3.45 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 1.82 – 2.75 au |
| Eccentricity | 0.203 |
| Inclination | 5.73° |
| Closest distance between its orbit and Earth's (MOID) | 0.811 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 21 April 1998
- (9244) Visnjan
- (11715) Harperclark
- (11716) Amahartman
- (11718) Hayward
- (11719) Hicklen
- (11720) Horodyskyj
- (11721) Shawnlowe
- (11724) Ronaldhsu
- (11725) Victoriahsu
- (12091) Jesmalmquist
- (12092) Erinorourke
- (12093) Chrimatthews