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Discovery and designation
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| Discovered by | S. J. Bus |
| Discovery site | Siding Spring Observatory |
| Discovery date | March 2, 1981 |
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Designations
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| MPC designation | 5761 |
| Alternate name(s) | 1981 ED21 |
| Epoch May 14, 2008 | |
| Ap | 3.7069878 |
| Peri | 1.7743932 |
| Eccentricity | 0.3525744 |
| Orbital period | 1657.2514834 |
| Mean anomaly | 49.55467 |
| Inclination | 9.24118 |
| Longitude of ascending node | 345.83345 |
| Argument of peri | 97.15122 |
| Absolute magnitude (H) | 14.3 |
5761 Andreivanov (1981 ED21) is a main-belt asteroid discovered on March 2, 1981 by S. J. Bus at Siding Spring Observatory in the course of the U.K. Schmidt-Caltech Asteroid Survey.
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