(20310) Donggooroh Main-belt Asteroid
Discovered on 31 March 1998 by LINEAR at Socorro.
Dong-Goo Roh (b. 1976) is a Korean researcher at the Korea Astronomy and Space Science Institute. He participated in the Near Space Optical Survey to discover potentially hazardous asteroids in the Southern Hemisphere. Dong-Goo also led a monitoring system for meteors, known as MONET (Korea Meteor Monitoring and Observation Network).Naming citation (WGSBN Bull. 6, #11, 13), IAU / Minor Planet Center, via NASA/JPL
Where Donggooroh is today
Seen from above the solar system on 2026-10-14: Donggooroh is 2.91 au from the Sun and 3.90 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20310 |
| Provisional designation | 1998 FD117 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.65 km (#13,578 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.333 |
| Rotation period | 5.49 hours |
| Absolute magnitude (H) | 14.35 |
| Orbital period | 3.55 years |
| Semi-major axis | 2.33 au |
| Perihelion – aphelion | 1.75 – 2.91 au |
| Eccentricity | 0.249 |
| Inclination | 11.4° |
| Closest distance between its orbit and Earth's (MOID) | 0.756 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 31 March 1998
- (9458) Beaumont
- (9459) Gracecai
- (11178) Emmajoy
- (11179) Ahmadperez
- (11180) Brentperlman
- (11697) Estrella
- (11698) Fichtelman
- (11701) Madeleineyang
- (11702) Mifischer
- (12506) Pariser
- (12508) Darcysloe
- (12509) Pathak