2554 Skiff
| Discovery | |
|---|---|
| Discovered by | E. Bowell |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 17 July 1980 |
| Designations | |
| MPC designation | 2554 Skiff |
|
Named after
|
Brian Skiff (astronomer) |
| 1980 OB · 1931 AB 1970 RE · 1976 GK8 1976 HV |
|
| main-belt · Flora | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 62.56 yr (22,851 days) |
| Aphelion | 2.5928 AU |
| Perihelion | 1.9354 AU |
| 2.2641 AU | |
| Eccentricity | 0.1452 |
| 3.41 yr (1,244 days) | |
| 301.60° | |
| 0° 17m 21.48s / day | |
| Inclination | 4.8593° |
| 296.40° | |
| 333.66° | |
| Physical characteristics | |
| Dimensions |
6.005±0.052 6.283±0.049 km 7.82 km (calculated) |
| 25.6±0.5 h | |
| 0.24 (assumed) 0.334±0.139 0.4489±0.0796 |
|
| S | |
| 12.5 · 12.51±0.31 · 12.7 | |
2554 Skiff, provisional designation 1980 OB, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered by American astronomer Edward Bowell at Lowell's Anderson Mesa Station, Arizona, on 17 July 1980.
The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 1.9–2.6 AU once every 3 years and 5 months (1,244 days). Its orbit has an eccentricity of 0.15 and an inclination of 5° with respect to the ecliptic. The first used precovery was taken at Palomar Observatory in 1953, extending the asteroid's observation arc by 27 years, while the first yet unused observation at Heidelberg Observatory dates back to 1931.
In August 2014, a rotational light-curve for this asteroid was obtained from photometric observations by Italian astronomers at the Franco Fuligni Observatory near Rome. It gave a provisional rotation period of 25.6±0.5 hours with a brightness amplitude of 0.32 in magnitude (U=1). According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 6.0 and 6.3 kilometers in diameter and its surface has an exceptionally high albedo of 0.334 0.449, respectively. The Collaborative Asteroid Lightcurve Link, however, assumes an albedo of 0.24 – derived from the family's principal body and namesake, the asteroid 8 Flora – and calculates a larger diameter of 7.8 kilometers.
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