5385 Kamenka
Asteroid
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5385 Kamenka, provisional designation 1975 TS3, is a background asteroid from the outer regions of the asteroid belt, approximately 16 kilometers (10 miles) in diameter. It was discovered on 3 October 1975, by Soviet astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula.[1] The presumed C-type asteroid has a rotation period of 6.68 hours.[3] It was named for the Ukrainian town of Kamianka.[1]
| Discovery[1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 3 October 1975 |
| Designations | |
Named after | Kamianka[1] (Ukrainian town) |
| 1975 TS3 · 1975 UG 1986 TY1 | |
| main-belt[1][2] · (outer)[3] background[4] | |
| Orbital characteristics[2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 63.01 yr (23,016 d) |
| Aphelion | 3.8787 AU |
| Perihelion | 2.4352 AU |
| 3.1570 AU | |
| Eccentricity | 0.2286 |
| 5.61 yr (2,049 d) | |
| 253.72° | |
| 0° 10m 32.52s / day | |
| Inclination | 9.7974° |
| 41.394° | |
| 301.79° | |
| Physical characteristics | |
| 14.10±3.89 km[5] 15.38±4.01 km[6] 16.768±0.317 km[7][8] 20.21 km (calculated)[3] | |
| 5.93±0.04 h[9] 6.683±0.008 h[10] | |
| 0.057 (assumed)[3] 0.0828±0.0192[8] 0.083±0.019[7] 0.11±0.06[6] 0.11±0.11[5] | |
| C (assumed)[3] | |
| 12.20[2][3][6][8] 12.24±0.11 (R)[9] 12.52[5] 12.59±0.27[11] | |
Orbit and classification
Kamenka is a non-family asteroid from the main belt's background population.[4] It orbits the Sun in the outer asteroid belt at a distance of 2.4–3.9 AU once every 5 years and 7 months (2,049 days; semi-major axis of 3.16 AU). Its orbit has an eccentricity of 0.23 and an inclination of 10° with respect to the ecliptic.[2] The body's observation arc begins with a precovery taken at Palomar Observatory in March 1955, twenty years prior to its official discovery observation at Nauchnij.[1]
Physical characteristics
Kamenka is an assumed carbonaceous C-type asteroid.[3]
Rotation period
Two rotational lightcurves of Kamenka have been obtained from photometric observations at the Palomar Transient Factory and at the Oakley Southern Sky and Oakley Observatory.[9][10] Lightcurve analysis gave a rotation period of 5.93 and 6.683 hours with a brightness amplitude of 0.26 and 0.15 magnitude, respectively (U=2/2).[3]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Kamenka measures between 14.10 and 16.768 kilometers in diameter and its surface has an albedo between 0.083 and 0.11.[5][6][7][8]
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 20.21 kilometers based on an absolute magnitude of 12.2.[3]
Naming
This minor planet was named after the town of Kamianka (Ukrainian: Кам'янка; Russian: Камeнка), located in the Cherkasy Oblast region of central Ukraine.[1] The official naming citation was published by the Minor Planet Center on 24 January 2000 (M.P.C. 38194).[12]
