|
Discovery and designation
|
|
|---|---|
| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | September 7, 1999 |
|
Designations
|
|
| MPC designation | 19638 |
| Alternate name(s) | 1999 RH57 |
| Epoch May 14, 2008 | |
| Ap | 2.8630039 |
| Peri | 2.6524987 |
| Eccentricity | 0.0381661 |
| Orbital period | 1672.7501336 |
| Mean anomaly | 6.48820 |
| Inclination | 5.76278 |
| Longitude of ascending node | 136.44145 |
| Argument of peri | 151.00044 |
| Absolute magnitude (H) | 14.4 |
19638 Johngenereid (1999 RH57) is a main-belt asteroid discovered on September 7, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.