| Name | |
|---|---|
| Name | Martina |
| Designation | 1917 S92 |
| Discovery | |
| Discoverer | Sergei Belyavsky |
| Discovery date | September 23, 1917 |
| Discovery site | Simeis |
| Orbital elements | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Eccentricity (e) | 0.204 |
| Semimajor axis (a) | 3.095 AU |
| Perihelion (q) | 2.464 AU |
| Aphelion (Q) | 3.726 AU |
| Orbital period (P) | 5.445 a |
| Inclination (i) | 2.066° |
| Longitude of the ascending node (Ω) | 46.136° |
| Argument of Perihelion (ω) | 299.570° |
| Mean anomaly (M) | 49.810° |
981 Martina is a Themistian asteroid.
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