(21827) Chingzhu Main-belt Asteroid
Discovered on 2 October 1999 by LINEAR at Socorro.
Ching Zhu (b. 1987) was awarded second place in the 2005 Intel International Science and Engineering Fair for her biochemistry project. She attends the Academic Magnet High School, North Charleston, South Carolina, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Chingzhu is today
Seen from above the solar system on 2026-10-14: Chingzhu is 2.57 au from the Sun and 1.63 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21827 |
| Provisional designation | 1999 TS91 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.14 |
| Orbital period | 3.82 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 2.31 – 2.57 au |
| Eccentricity | 0.0530 |
| Inclination | 8.19° |
| Closest distance between its orbit and Earth's (MOID) | 1.32 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 October 1999
- (12929) Periboea
- (12935) Zhengzhemin
- (13406) Sekora
- (16087) Rhythmgarg
- (16094) Scottmccord
- (20629) Robert
- (20631) Stefuller
- (20632) Carlyrosser
- (20633) Robertluther
- (20634) Marichardson
- (20635) Robinandrews
- (20636) Romanhirsch