(21475) Jasonclain Main-belt Asteroid
Discovered on 21 April 1998 by LINEAR at Socorro.
Jason Bernard Clain (b. 1989) was awarded second place in the 2006 Intel International Science and Engineering Fair for his medicine and health project. He attends the Greenwich High School, Greenwich, Connecticut, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Jasonclain is today
Seen from above the solar system on 2026-10-14: Jasonclain is 2.20 au from the Sun and 2.99 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21475 |
| Provisional designation | 1998 HQ100 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.09 km (#12,526 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.127 |
| Rotation period | 5.27 hours |
| Absolute magnitude (H) | 14.73 |
| Orbital period | 3.23 years |
| Semi-major axis | 2.18 au |
| Perihelion – aphelion | 2.09 – 2.27 au |
| Eccentricity | 0.0421 |
| Inclination | 2.60° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Jason
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- (9240) Nassau
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- (17199) Jasonliu
- (17992) Japellegrino
- (18155) Jasonschuler
- (21726) Rezvanian
- (22775) Jasonelloyd
- (23728) Jasonmorrow
- (25927) Jagandelman
- (26012) Sanborn
- (26717) Jasonye
All asteroids named after someone called Jason
Also discovered on 21 April 1998
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- (11715) Harperclark
- (11716) Amahartman
- (11718) Hayward
- (11719) Hicklen
- (11720) Horodyskyj
- (11721) Shawnlowe
- (11724) Ronaldhsu
- (11725) Victoriahsu
- (12091) Jesmalmquist
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- (12093) Chrimatthews