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Discovery and designation
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| Discovered by | Reinmuth, K. |
| Discovery site | Heidelberg |
| Discovery date | February 14, 1932 |
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Designations
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| MPC designation | 2290 |
| Named after | Joseph Helffrich |
| Alternate name(s) | 1932 CD1 |
| Epoch May 14, 2008 | |
| Ap | 3.1994512 |
| Peri | 1.9809016 |
| Eccentricity | 0.2352252 |
| Orbital period | 1522.6231989 |
| Mean anomaly | 166.40386 |
| Inclination | 11.54025 |
| Longitude of ascending node | 156.01546 |
| Argument of peri | 270.72622 |
| Absolute magnitude (H) | 12.2 |
2290 Helffrich (1932 CD1) is a main-belt asteroid discovered on February 14, 1932 by Reinmuth, K. at Heidelberg.
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