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Discovery and designation
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| Discovered by | H. Kosai and K. Hurukawa |
| Discovery site | Kiso Station of the Tokyo Astronomical Observatory |
| Discovery date | March 12, 1977 |
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Designations
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| MPC designation | 15202 |
| Alternate name(s) | 1977 EM5 |
| Epoch May 14, 2008 | |
| Ap | 2.8964777 |
| Peri | 1.8902489 |
| Eccentricity | 0.2102123 |
| Orbital period | 1352.4193260 |
| Mean anomaly | 265.43188 |
| Inclination | 9.57857 |
| Longitude of ascending node | 177.89134 |
| Argument of peri | 223.57030 |
| Absolute magnitude (H) | 14.1 |
15202 Yamada-Houkoku (1977 EM5) is a main-belt asteroid discovered on March 12, 1977 by H. Kosai and K. Hurukawa at the Kiso Station of the Tokyo Astronomical Observatory.
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