|
Discovery and designation
|
|
|---|---|
| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | October 2, 1999 |
|
Designations
|
|
| MPC designation | 20631 |
| Alternate name(s) | 1999 TW91 |
| Epoch May 14, 2008 | |
| Ap | 2.6600343 |
| Peri | 2.0289195 |
| Eccentricity | 0.1345961 |
| Orbital period | 1311.1952105 |
| Mean anomaly | 175.97915 |
| Inclination | 7.36714 |
| Longitude of ascending node | 65.65957 |
| Argument of peri | 260.07173 |
| Absolute magnitude (H) | 14.3 |
20631 Stefuller (1999 TW91) is a main-belt asteroid discovered on October 2, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.