|
Discovery and designation
|
|
|---|---|
| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | September 29, 1999 |
|
Designations
|
|
| MPC designation | 22890 |
| Alternate name(s) | 1999 SF8 |
| Epoch May 14, 2008 | |
| Ap | 2.6621490 |
| Peri | 1.8715036 |
| Eccentricity | 0.1743948 |
| Orbital period | 1246.5961433 |
| Mean anomaly | 218.26149 |
| Inclination | 7.10252 |
| Longitude of ascending node | 59.44078 |
| Argument of peri | 250.92295 |
| Absolute magnitude (H) | 15.0 |
22890 Ruthaellis (1999 SF8) is a main-belt asteroid discovered on September 29, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.