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Discovery and designation
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| Discovered by | E. F. Helin |
| Discovery site | Palomar |
| Discovery date | April 25, 1990 |
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Designations
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| MPC designation | 17447 |
| Alternate name(s) | 1990 HE |
| Epoch May 14, 2008 | |
| Ap | 2.1642155 |
| Peri | 1.7176507 |
| Eccentricity | 0.1150387 |
| Orbital period | 987.6754835 |
| Mean anomaly | 172.83105 |
| Inclination | 24.79927 |
| Longitude of ascending node | 35.56490 |
| Argument of peri | 255.78465 |
| Absolute magnitude (H) | 14.5 |
17447 Heindl (1990 HE) is an inner main-belt asteroid discovered on April 25, 1990 by E. F. Helin at Palomar.
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