6980 Kyusakamoto
| Discovery | |
|---|---|
| Discovered by |
K. Endate K. Watanabe |
| Discovery site | Kitami Obs. |
| Discovery date | 16 September 1993 |
| Designations | |
| MPC designation | (6980) Kyusakamoto |
|
Named after
|
Kyu Sakamoto (Japanese singer) |
|
1993 SV1 · 1979 WH7 1988 RU13 |
|
| main-belt · Koronis | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 36.57 yr (13,359 days) |
| Aphelion | 2.9654 AU |
| Perihelion | 2.7031 AU |
| 2.8342 AU | |
| Eccentricity | 0.0463 |
| 4.77 yr (1,743 days) | |
| 20.811° | |
| 0° 12m 23.76s / day | |
| Inclination | 3.2910° |
| 97.465° | |
| 211.51° | |
| Jupiter Tisserand parameter | 3.3080 |
| Physical characteristics | |
| Dimensions |
8.791±0.081 km 8.98 km (calculated) |
|
3.2526±0.0042 h (R) 3.2529±0.0042 h (S) |
|
| 0.24 (assumed) 0.301±0.037 |
|
| S | |
| 12.2 · 12.367±0.002 (R) · 12.4 · 12.45±0.07 · 12.966±0.003 (S) | |
6980 Kyusakamoto, provisional designation 1993 SV1, is a stony Koronis asteroid from the outer region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered by Japanese astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory on 16 September 1993.
The S-type asteroid is a member of the Koronis family, which is named after 158 Koronis and consists of about 300 known bodies with nearly ecliptical orbits. It orbits the Sun at a distance of 2.7–3.0 AU once every 4 years and 9 months (1,743 days). Its orbit has an eccentricity of 0.05 and an inclination of 3° with respect to the ecliptic. The first precovery was taken at Crimea-Nauchnij in 1979, extending the asteroid's observation arc by 14 years prior to its discovery.
A rotational light-curve was obtained through photometric observations at the U.S. Palomar Transient Factory, California, in August 2012. The light-curve showed a period of 3.2529±0.0042 hours with a brightness amplitude of 0.40 in magnitude (U=2). In the Mould-R filter (R), a different photometric band, the observations rendered a nearly identical period of 3.2526±0.0042 hours with an amplitude of 0.41 (U=2).
...
Wikipedia