(19439) Allisontjong Main-belt Asteroid
Discovered on 24 March 1998 by LINEAR at Socorro.
Allison Krystle Weili Tjong (b. 1986) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her environmental science team project. She attends the Lake Brantley High School, Altamonte Springs, Florida, U.S.A.Naming citation (20040830/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Allisontjong is today
Seen from above the solar system on 2026-10-14: Allisontjong is 2.55 au from the Sun and 2.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19439 |
| Provisional designation | 1998 FB91 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.89 km (#7,769 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0650 |
| Absolute magnitude (H) | 14.4 |
| Orbital period | 4.17 years |
| Semi-major axis | 2.59 au |
| Perihelion – aphelion | 2.44 – 2.74 au |
| Eccentricity | 0.0592 |
| Inclination | 7.26° |
| Closest distance between its orbit and Earth's (MOID) | 1.44 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Allison
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- (16185) Allisonjia
- (20092) Allisonmcgraw
- (20834) Allihewlett
- (20852) Allilandstrom
- (21694) Allisowilson
- (21727) Rhines
- (22174) Allisonmae
- (24274) Alliswheeler
- (25364) Allisonbaas
- (25914) Bair
- (31597) Allisonmarie
All asteroids named after someone called Allison
Also discovered on 24 March 1998
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- (9123) Yoshiko
- (12062) Tilmanspohn
- (12503) Danielpeterson
- (12504) Nuest
- (16915) Bredthauer
- (16934) Kevinmeng
- (17777) Ornicar
- (18649) Fabrega
- (18689) Rodrick
- (19434) Bahuffman
- (19436) Marycole