| Name | |
|---|---|
| Name | Knöfel |
| Designation | 1989 AU6 |
| Discovery | |
| Discovery date | January 11, 1989 |
| Orbital elements | |
| Epoch October 27, 2007 (JDCT 2454400.5) | |
| Eccentricity (e) | 0.0564596 |
| Semimajor axis (a) | 2.7331363 AU |
| Perihelion (q) | 2.5788245 AU |
| Aphelion (Q) | 2.8874481 AU |
| Orbital period (P) | 4.52 a |
| Inclination (i) | 4.60759° |
| Longitude of the ascending node (Ω) | 311.01133° |
| Argument of Perihelion (ω) | 115.79564° |
| Mean anomaly (M) | 153.51496° |
16438 Knöfel is a main belt asteroid with an orbital period of 1650.4043766 days (4.52 years).[1]
The asteroid was discovered on January 11, 1989.