|
Discovery and designation
|
|
|---|---|
| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | December 7, 1999 |
|
Designations
|
|
| MPC designation | 13438 |
| Alternate name(s) | 1999 XD86 |
| Epoch May 14, 2008 | |
| Ap | 2.5178739 |
| Peri | 1.9816503 |
| Eccentricity | 0.1191734 |
| Orbital period | 1232.5465418 |
| Mean anomaly | 143.05308 |
| Inclination | 2.17334 |
| Longitude of ascending node | 86.51624 |
| Argument of peri | 56.85674 |
| Absolute magnitude (H) | 14.9 |
13438 Marthanalexander (1999 XD86) is a main-belt asteroid discovered on December 7, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.