(20411) Jooyeongeem Main-belt Asteroid
Discovered on 24 August 1998 by LINEAR at Socorro.
Jooyeon Geem (b. 1993) is a Korean researcher at Luleå University of Technology, Sweden. Her research focuses on the physical properties of asteroids, particularly their hydration and dehydration processes and spectro-polarimetric behavior. She also contributes to the development of ground-based observational instrumentation.Naming citation (WGSBN Bull. 6, #11, 19), IAU / Minor Planet Center, via NASA/JPL
Where Jooyeongeem is today
Seen from above the solar system on 2026-10-14: Jooyeongeem is 3.22 au from the Sun and 2.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20411 |
| Provisional designation | 1998 QJ69 |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.0 km (#4,562 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0760 |
| Absolute magnitude (H) | 13.45 |
| Orbital period | 5.57 years |
| Semi-major axis | 3.14 au |
| Perihelion – aphelion | 2.98 – 3.30 au |
| Eccentricity | 0.0500 |
| Inclination | 15.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.98 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 24 August 1998
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- (15008) Delahodde
- (15009) Johnwheeler
- (16961) Mullahy
- (18737) Aliciaworley
- (20405) Barryburke
- (20412) Josemariamadiedo
- (21554) Leechaohsi
- (21555) Levary
- (21556) Christineli
- (21557) Daniellitt
- (21558) Alisonliu