21602 Ialmenus
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| Discovery and designation | |
|---|---|
| Discovered by | M. Tichy and Z. Moravec |
| Discovery site | Klet |
| Discovery date | December 17, 1998 |
| Designations | |
| MPC designation | 21602 |
| Alternative names | 1998 YW1 |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 5.4945985 |
| Perihelion | 4.8723445 |
| Eccentricity | 0.0600229 |
| Orbital period | 4310.5182392 |
| Mean anomaly | 219.62290 |
| Inclination | 7.94707 |
| Longitude of ascending node | 309.32966 |
| Argument of perihelion | 193.93135 |
| Physical characteristics | |
| Absolute magnitude (H) | 11.6 |
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21602 Ialmenus (1998 YW1) is a Jupiter Trojan discovered on December 17, 1998 by M. Tichy and Z. Moravec at Klet.
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