|
Discovery and designation
|
|
|---|---|
| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | October 2, 1999 |
|
Designations
|
|
| MPC designation | 22921 |
| Alternate name(s) | 1999 TG95 |
| Epoch May 14, 2008 | |
| Ap | 2.5798012 |
| Peri | 1.9725004 |
| Eccentricity | 0.1334052 |
| Orbital period | 1254.2958763 |
| Mean anomaly | 207.88310 |
| Inclination | 7.64774 |
| Longitude of ascending node | 114.68537 |
| Argument of peri | 223.70980 |
| Absolute magnitude (H) | 15.4 |
22921 Siyuanliu (1999 TG95) is a main-belt asteroid discovered on October 2, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.