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Discovery and designation
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| Discovered by | J. Guarro i Flo |
| Discovery site | Piera Observatory |
| Discovery date | August 28, 2001 |
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Designations
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| MPC designation | 55112 |
| Alternate name(s) | 2001 QQ153 |
| Epoch May 14, 2008 | |
| Ap | 3.3301147 |
| Peri | 2.6213133 |
| Eccentricity | 0.1190977 |
| Orbital period | 1874.9306666 |
| Mean anomaly | 104.94444 |
| Inclination | 10.57252 |
| Longitude of ascending node | 30.75059 |
| Argument of peri | 324.43067 |
| Absolute magnitude (H) | 13.3 |
55112 Mariangela (2001 QQ153) is a main-belt asteroid discovered on August 28, 2001 by J. Guarro i Flo at Piera Observatory.
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