2478 Tokai
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| Discovery[1] and designation | |
|---|---|
| Discovered by | T. Furuta |
| Discovery site | Tokai |
| Discovery date | May 4, 1981 |
| Designations | |
| MPC designation | 2478 |
| Alternative names | 1981 JC |
| Orbital characteristics[1] | |
| Epoch May 14, 2008 | |
| Aphelion | 2.3771064 |
| Perihelion | 2.0757896 |
| Eccentricity | 0.0676676 |
| Orbital period | 1213.4371173 |
| Mean anomaly | 174.41379 |
| Inclination | 4.13841 |
| Longitude of ascending node | 228.90841 |
| Argument of perihelion | 233.37948 |
| Known satellites | 1[2] |
| Physical characteristics | |
| Dimensions | 7 km - 15 km[3] |
| Absolute magnitude (H) | 12.8[1] |
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2478 Tokai (1981 JC) is a main-belt asteroid discovered on May 4, 1981 by T. Furuta at Tōkai, Aichi.
Since the albedo of this asteroid is unknown, the size can only be estimated as between about 7 km - 15 km,[3] based on the absolute magnitude (H) of 12.8.[1]
Satellite
Photometric observations in 2007 revealed a ~7+km satellite (lower limit diameter ratio of 0.72) with an orbital period of 25.88 hours.[2]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 2478 Tokai (1981 JC)". 2007-05-22 last obs. Retrieved 2009-10-13.
- ↑ 2.0 2.1 "Electronic Telegram No. 824". IAU Central Bureau for Astronomical Telegrams. 2007-01-30. Retrieved 2011-07-05.
- ↑ 3.0 3.1 "Absolute Magnitude (H)". NASA/JPL Near-Earth Object Program. Archived from the original on 26 October 2009. Retrieved 2009-10-13.
External links
- Orbital simulation from JPL (Java) / Ephemeris
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