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Discovery and designation
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| Discovered by | Debehogne, H. |
| Discovery site | La Silla |
| Discovery date | February 28, 1981 |
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Designations
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| MPC designation | 2958 |
| Alternate name(s) | 1981 DG |
| Epoch May 14, 2008 | |
| Ap | 2.9208475 |
| Peri | 2.8234901 |
| Eccentricity | 0.0169484 |
| Orbital period | 1777.9246651 |
| Mean anomaly | 122.48629 |
| Inclination | 1.02443 |
| Longitude of ascending node | 297.68591 |
| Argument of peri | 308.23762 |
| Absolute magnitude (H) | 12.2 |
2958 Arpetito (1981 DG) is a main-belt asteroid discovered on February 28, 1981 by Debehogne, H. at La Silla.
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