1359 Prieska
1359 Prieska, provisional designation 1935 OC, is a rare-type carbonaceous asteroid from the outer region of the asteroid belt, approximately 50 kilometers in diameter. It was discovered on 22 July 1935, by English-born South-African astronomer Cyril Jackson at Johannesburg Observatory in South Africa. The asteroid was named after the South African town of Prieska.
| Discovery | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 22 July 1935 |
| Designations | |
MPC designation | (1359) Prieska |
Named after | Prieska (South African town) |
Alternative designations | 1935 OC · A903 UE A917 HA |
Minor planet category | main-belt · (outer) |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 113.69 yr (41,524 days) |
| Aphelion | 3.3306 AU |
| Perihelion | 2.9053 AU |
Semi-major axis | 3.1179 AU |
| Eccentricity | 0.0682 |
Orbital period (sidereal) | 5.51 yr (2,011 days) |
Mean anomaly | 232.56° |
Mean motion | 0° 10m 44.4s / day |
| Inclination | 11.105° |
Longitude of ascending node | 64.033° |
| 343.11° | |
| Physical characteristics | |
| Dimensions | 36.45±9.67 km 46.096±0.136 km 48.491±0.439 km 52.07 km (derived) 52.64±1.07 km 65.86±16.91 km |
| 0.03±0.01 0.042±0.002 0.0494 (derived) 0.0570±0.0085 0.059±0.007 0.07±0.03 | |
| Tholen = CX: · CX: B–V = 0.710 U–B = 0.355 | |
| 10.3 · 10.36 · 10.47±0.24 · 10.50 | |
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