|
Discovery and designation
|
|
|---|---|
| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | July 13, 1999 |
|
Designations
|
|
| MPC designation | 18821 |
| Alternate name(s) | 1999 NW9 |
| Epoch May 14, 2008 | |
| Ap | 3.2546597 |
| Peri | 2.6231635 |
| Eccentricity | 0.1074371 |
| Orbital period | 1840.2558733 |
| Mean anomaly | 207.59756 |
| Inclination | 2.35653 |
| Longitude of ascending node | 160.65769 |
| Argument of peri | 228.98697 |
| Absolute magnitude (H) | 14.1 |
18821 Markhavel (1999 NW9) is a main-belt asteroid discovered on July 13, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.