21617 Johnhagen
| Discovery | |
|---|---|
| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | 13 May 1999 |
| Designations | |
| MPC designation | 21617 |
| 1999 JO119 | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 9656 days (26.44 yr) |
| Aphelion | 2.6877055 AU (402.07502 Gm) |
| Perihelion | 1.9962723 AU (298.63809 Gm) |
| 2.341989 AU (350.3566 Gm) | |
| Eccentricity | 0.1476167 |
| 3.58 yr (1309.1 d) | |
| 118.42943° | |
| 0° 16m 29.987s / day | |
| Inclination | 2.428313° |
| 221.90655° | |
| 148.20556° | |
| Earth MOID | 0.994569 AU (148.7854 Gm) |
| Jupiter MOID | 2.77332 AU (414.883 Gm) |
| Jupiter Tisserand parameter | 3.548 |
| Physical characteristics | |
| 14.9 | |
|
| |
21617 Johnhagen (1999 JO119) is a main-belt asteroid discovered on May 13, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. The asteroid is named after John Thomas Hagen as an award for placing second in the Space Science category at the 2005 Intel International Science and Engineering Fair.[2] John designed and tested a balloon that could be used to explore the surface of Mars in ways that satellites and rovers could not.[3] John Hagen was born in 1988 in Defiance, Ohio and attended Ayersville High School while developing his project.
References
- ↑ "21617 Johnhagen (1999 JO119)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 April 2016.
- ↑ "2005 Intel ISEF Grand Awards". Society for Science & the Public. 2008.
- ↑ Rick Nolthenius (2005). "Intel International Science Fair - 2005". Cabrillo College.
External links
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