(21840) Ghoshchoudhury Main-belt Asteroid
Discovered on 2 October 1999 by LINEAR at Socorro.
Triparna Ghosh-Choudhury (b. 1987) was awarded third place in the 2005 Intel International Science and Engineering Fair for her medicine and health project. She also received the Intel Foundation Achievement Award. She attends the Northside Health Careers High School, San Antonio, Texas, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ghoshchoudhury is today
Seen from above the solar system on 2026-10-14: Ghoshchoudhury is 2.52 au from the Sun and 3.20 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21840 |
| Provisional designation | 1999 TT101 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.99 |
| Orbital period | 3.53 years |
| Semi-major axis | 2.32 au |
| Perihelion – aphelion | 2.09 – 2.55 au |
| Eccentricity | 0.101 |
| Inclination | 7.42° |
| Closest distance between its orbit and Earth's (MOID) | 1.10 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 October 1999
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- (12935) Zhengzhemin
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