|
Discovery and designation
|
|
|---|---|
| Discovered by | J. M. Roe |
| Discovery site | Oaxaca |
| Discovery date | December 2, 1999 |
|
Designations
|
|
| MPC designation | 18876 |
| Alternate name(s) | 1999 XM |
| Epoch May 14, 2008 | |
| Ap | 2.9981001 |
| Peri | 1.8245385 |
| Eccentricity | 0.2433443 |
| Orbital period | 1367.6674599 |
| Mean anomaly | 94.76180 |
| Inclination | 8.85080 |
| Longitude of ascending node | 75.64918 |
| Argument of peri | 356.83701 |
| Absolute magnitude (H) | 14.1 |
18876 Sooner (1999 XM) is a main-belt asteroid discovered on December 2, 1999 by J. M. Roe at Oaxaca.