9947 Takaishuji
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| Discovery | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Discovered by | E. F. Helin | ||||||||||||
| Discovery date | 17 August 1990 | ||||||||||||
| Designations | |||||||||||||
| MPC designation | 9947 Takaishuji | ||||||||||||
| (9947) 1990 QB | |||||||||||||
| Orbital characteristics[1] | |||||||||||||
| Epoch 13 January 2016 (JD 2457400.5) | |||||||||||||
| Uncertainty parameter 0 | |||||||||||||
| Observation arc | 14930 days (40.88 yr) | ||||||||||||
| Aphelion | 2.9225373 AU (437.20536 Gm) | ||||||||||||
| Perihelion | 1.7424090 AU (260.66068 Gm) | ||||||||||||
| 2.3324731 AU (348.93301 Gm) | |||||||||||||
| Eccentricity | 0.252978 | ||||||||||||
| 3.56 yr (1301.1 d) | |||||||||||||
| 9.4706450° | |||||||||||||
| 0° 16m 36.051s / day | |||||||||||||
| Inclination | 21.85536° | ||||||||||||
| 332.23139° | |||||||||||||
| 56.85162° | |||||||||||||
| Earth MOID | 0.815677 AU (122.0235 Gm) | ||||||||||||
| Jupiter MOID | 2.75063 AU (411.488 Gm) | ||||||||||||
| Jupiter Tisserand parameter | 3.433 | ||||||||||||
| Physical characteristics | |||||||||||||
| Dimensions | ~16.2km[2] | ||||||||||||
| ~0.01 | |||||||||||||
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| 14.2 | |||||||||||||
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9947 Takaishuji is a main belt asteroid. It orbits the Sun once every 3.56 years.[1]
Discovered on August 17, 1990 by E. F. Helin, it was given the provisional designation "1990 QB".[3] It was later renamed 9947 Takaishuji after Shuji Takai, a Japanese schoolteacher in Kuroishi.[4]
References
- 1 2 "9947 Takaishuji (1990 QB)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 13 April 2016.
- ↑ Tedesco E.F.; Noah P.V.; Noah M.; Price S.D. "The supplemental IRAS minor planet survey (SIMPS)".
- ↑ MPO 18125 Minor Planet Center
- ↑ "Minor Planet Centre Circular 78719" (PDF).
External links
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