| Discovery[1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 16 September 1982 |
| Designations | |
| (11824) Alpaidze | |
Named after | Galaktion Alpaidze (Plesetsk Cosmodrome)[2] |
| 1982 SO5 · 1978 WV1 | |
| main-belt · (middle)[3] background | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 37.98 yr (13,874 days) |
| Aphelion | 3.4452AU |
| Perihelion | 1.8267 AU |
| 2.6359 AU | |
| Eccentricity | 0.3070 |
| 4.28yr (1,563 days) | |
| 59.051° | |
| 0° 13m 49.08s / day | |
| Inclination | 1.7272° |
| 1.3721° | |
| 353.03° | |
| Physical characteristics | |
| 4.83 km(calculated)[3] | |
| 4.1146±0.0021 h[4] 4.1157±0.0021 h[4] | |
| 0.10(assumed)[3] | |
| S/C[3] | |
| 14.7[1][3] · 15.309±0.001(S)[4] · 14.692±0.001(R)[4] | |
11824 Alpaidze, provisional designation1982 SO5, is a stony backgroundasteroid from the middle region of theasteroid belt, approximately 5 kilometers (3.1 miles) in diameter. It was discovered on 16 September 1982, by Russian astronomerLyudmila Chernykh at theCrimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula. The asteroid was named for Soviet GeneralGalaktion Alpaidze.[2]
Alpaidze is a non-family asteroid from the main belt'sbackground population. It orbits the Sun in thecentral main-belt at a distance of 1.8–3.4 AU once every 4 years and 3 months (1,563 days). Its orbit has aneccentricity of 0.31 and aninclination of 2° with respect to theecliptic.[1] It was first identified as1978 WV1 atPalomar Observatory in November 1978. The body'sobservation arc, however, begins with its official discovery observation.[2]
Thisminor planet was named after Georgian-born Soviet Lieutenant GeneralGalaktion Alpaidze (1916–2006),Hero of the Soviet Union and laureate of theUSSR State Prize. He was the head of thePlesetsk Cosmodrome in the 1960s and 1970s, where space crafts were tested. During his supervision, the Cosmodrome became the world's most activelaunch site in the world.[2] The official naming citation was published by theMinor Planet Center on 2 April 2007 (M.P.C. 59385).[5]
In September 2009, two rotationallightcurves ofAlpaidze were obtained from photometric observations made by astronomers at thePalomar Transient Factory, California. The fragmentary lightcurves gave arotation period of4.1157 and4.1146 hours with a brightness variation of 0.05 and 0.06 inmagnitude, respectively (U=1/1).[4]
The Collaborative Asteroid Lightcurve Link assumes analbedo of 0.10 – a compromise value between thestony (0.20) andcarbonaceous (0.057) albedos for unknown asteroids in the 2.6–2.7 AU region of the main-belt – and calculates a diameter of 4.8 kilometers with anabsolute magnitude of 14.7.[3]
