4670 Yoshinogawa
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Discovery and designation
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| Discovered by | T. Seki |
| Discovery site | Geisei |
| Discovery date | December 19, 1987 |
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Designations
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| MPC designation | 4670 |
| Alternative names[1] | 1987 YJ |
| Epoch May 14, 2008 | |
| Ap | 2.4488243 |
| Peri | 2.0326827 |
| Eccentricity | 0.0928575 |
| Orbital period | 1225.1508356 |
| Mean anomaly | 1.97457 |
| Inclination | 5.02141 |
| Longitude of ascending node | 314.96363 |
| Argument of peri | 180.55507 |
| Absolute magnitude | 14.2 |
4670 Yoshinogawa (1987 YJ) is a Main-belt Asteroid discovered on December 19, 1987 by T. Seki at Geisei.

