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Discovery and designation
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| Discovered by | F. Borngen |
| Discovery site | Tautenburg |
| Discovery date | August 6, 1991 |
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Designations
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| MPC designation | 10781 |
| Alternate name(s) | 1991 PV31 |
| Epoch May 14, 2008 | |
| Ap | 2.9631409 |
| Peri | 2.3173053 |
| Eccentricity | 0.1223070 |
| Orbital period | 1566.9652388 |
| Mean anomaly | 311.07287 |
| Inclination | 5.46109 |
| Longitude of ascending node | 184.88273 |
| Argument of peri | 151.85254 |
| Absolute magnitude (H) | 13.9 |
10781 Ritter (1991 PV31) is a main-belt asteroid discovered on August 6, 1991 by F. Borngen at Tautenburg. The asteroid is named for Johann Wilhelm Ritter, a German chemist and physicist.[1]
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