| Name | |
|---|---|
| Name | Yerkes |
| Designation | 1922 MZ |
| Discovery | |
| Discoverer | G. Van Biesbroeck |
| Discovery date | November 23, 1922 |
| Discovery site | Williams Bay |
| Orbital elements | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Eccentricity (e) | 0.216 |
| Semimajor axis (a) | 2.668 AU |
| Perihelion (q) | 2.091 AU |
| Aphelion (Q) | 3.246 AU |
| Orbital period (P) | 4.359 a |
| Inclination (i) | 8.780° |
| Longitude of the ascending node (Ω) | 354.119° |
| Argument of Perihelion (ω) | 8.903° |
| Mean anomaly (M) | 33.588° |
990 Yerkes is a minor planet orbiting the Sun.
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