1393 Sofala
1393 Sofala, provisional designation 1936 KD, is a Vestian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 25 May 1936, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named after the province of Sofala in Mozambique.
| Discovery | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 25 May 1936 |
| Designations | |
MPC designation | (1393) Sofala |
Named after | Sofala (Province in Mozambique) |
Alternative designations | 1936 KD · 1928 FB 1951 GL · 1956 TE 1958 CA · 1971 SJ 1975 UB |
Minor planet category | main-belt · (inner) Vestian · background |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 89.54 yr (32,703 days) |
| Aphelion | 2.6997 AU |
| Perihelion | 2.1685 AU |
Semi-major axis | 2.4341 AU |
| Eccentricity | 0.1091 |
Orbital period (sidereal) | 3.80 yr (1,387 days) |
Mean anomaly | 146.78° |
Mean motion | 0° 15m 34.2s / day |
| Inclination | 5.8476° |
Longitude of ascending node | 56.701° |
| 183.46° | |
| Physical characteristics | |
| Dimensions | 11.214±0.495 km 11.30 km (calculated) |
Synodic rotation period | 7.8 h (poor) 16.5931±0.0005 h 108.259±0.7031 h |
| 0.20 (assumed) 0.223±0.046 | |
| S (assumed) | |
| 11.835±0.002 (R) · 12.00 · 12.1 · 12.42±0.78 | |
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