|
Discovery and designation
|
|
|---|---|
| Discovered by | B. L. Stevens |
| Discovery site | Desert Moon Observatory |
| Discovery date | January 9, 2002 |
|
Designations
|
|
| MPC designation | 55561 |
| Alternate name(s) | 2002 AF9 |
| Epoch May 14, 2008 | |
| Ap | 2.6029613 |
| Peri | 1.9637103 |
| Eccentricity | 0.1399818 |
| Orbital period | 1260.2395337 |
| Mean anomaly | 75.69419 |
| Inclination | 5.70130 |
| Longitude of ascending node | 95.17136 |
| Argument of peri | 241.28567 |
| Absolute magnitude (H) | 16.2 |
55561 Madenberg (2002 AF9) is a main-belt asteroid discovered on January 9, 2002 by B. L. Stevens at Desert Moon Observatory.