21576 McGivney
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Discovery and designation
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| Discovered by | W. G. Dillon |
| Discovery site | Needville |
| Discovery date | September 19, 1998 |
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Designations
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| MPC designation | 21576 |
| Alternative names[1] | 1998 SH4 |
| Epoch May 14, 2008 | |
| Ap | 3.5844082 |
| Peri | 2.7660062 |
| Eccentricity | 0.1288738 |
| Orbital period | 2066.6005661 |
| Mean anomaly | 345.67531 |
| Inclination | 2.17928 |
| Longitude of ascending node | 137.31006 |
| Argument of peri | 108.79922 |
| Absolute magnitude | 13.9 |
21576 McGivney (1998 SH4) is a Main-belt Asteroid discovered on September 19, 1998 by W. G. Dillon at Needville.
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