1575 Winifred
| Discovery | |
|---|---|
| Discovered by | Indiana University (Indiana Asteroid Program) |
| Discovery site | Goethe Link Obs. |
| Discovery date | 20 April 1950 |
| Designations | |
| (1575) Winifred | |
Named after | Winifred Sawtell (staff member at USNO) |
| 1950 HH · 1928 HG 1939 GK · 1950 HD1 1977 UH1 | |
| main-belt · Phocaea | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 88.51 yr (32,327 days) |
| Aphelion | 2.7990 AU |
| Perihelion | 1.9497 AU |
| 2.3743 AU | |
| Eccentricity | 0.1789 |
| 3.66 yr (1,336 days) | |
| 158.55° | |
| 0° 16m 9.84s / day | |
| Inclination | 24.827° |
| 206.84° | |
| 348.40° | |
| Physical characteristics | |
| Dimensions | 9.31±1.0 km (IRAS) 9.441±0.131 km 9.45 km (derived) 9.488±0.254 10.66±0.43 km |
| 125±2 h 129 h | |
| 0.236±0.033 0.2388±0.0311 0.2452±0.064 0.247±0.034 0.3134 (derived) | |
| S | |
| 11.36±1.19 · 12.0 · 12.3 | |
1575 Winifred, provisional designation 1950 HH, is a stony Phocaea asteroid and slow rotator from the inner regions of the asteroid belt, approximately 9.5 kilometers in diameter.
It was discovered on 20 April 1950, by astronomer Robert Curry Cameron of Indiana University during the Indiana Asteroid Program at Goethe Link Observatory in Indiana, United States. It was named after Winifred Cameron, an astronomer at the United States Naval Observatory.