5621 Erb
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Discovery and designation
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| Discovered by | Lawrence, K. |
| Discovery site | Palomar |
| Discovery date | September 23, 1990 |
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Designations
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| MPC designation | 5621 |
| Alternative names[1] | 1990 SG4 |
| Epoch May 14, 2008 | |
| Ap | 3.1883760 |
| Peri | 1.4194900 |
| Eccentricity | 0.3838840 |
| Orbital period | 1277.3302549 |
| Mean anomaly | 52.83453 |
| Inclination | 5.53021 |
| Longitude of ascending node | 279.10013 |
| Argument of peri | 4.95600 |
| Absolute magnitude | 13.9 |
5621 Erb (1990 SG4) is a Mars-crossing Asteroid discovered on September 23, 1990 by Lawrence, K. at Palomar.
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