| Discovery [1] | |
|---|---|
| Discovered by | L. V. Zhuravleva |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 18 August 1972 |
| Designations | |
| (2098) Zyskin | |
Named after | Lev Zyskin(surgeon)[2] |
| 1972 QE · 1934 NE 1957 QH | |
| main-belt · Vestoid[3] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 58.80 yr (21,476 days) |
| Aphelion | 2.7306AU |
| Perihelion | 2.1167 AU |
| 2.4236 AU | |
| Eccentricity | 0.1267 |
| 3.77yr (1,378 days) | |
| 338.14° | |
| Inclination | 6.4956° |
| 337.74° | |
| 354.48° | |
| Physical characteristics | |
| Dimensions | 8.91 km(calculated)[3] 10.44±2.92 km[4] 11.35±0.20 km[5] 12.731±0.185 km[6] 12.774±0.047 km[7] |
| 3.9201±0.0007h[8] | |
| 0.1084±0.0164[7] 0.165±0.028[5][6] 0.18±0.08[4] 0.20(assumed)[3] | |
| S [3] | |
| 12.30[4][5] · 12.4[1] · 12.5[7] · 12.165±0.001(R)[8] · 12.56±0.22[9] · 12.61[3] | |
2098 Zyskin, provisional designation1972 QE, is a vestoidasteroid from the inner regions of theasteroid belt, approximately 10 kilometers in diameter. It was discovered by Russian–Ukrainian astronomerLyudmila Zhuravleva at theCrimean Astrophysical Observatory in Nauchnyj on 18 August 1972.[10] The asteroid was named for surgeonLev Zyskin (1930–1994).[11]
Zyskin is a member of theVesta family. Asteroids with these spectral and orbital characteristics are thought to have all originated from theRheasilvia crater, a large impact crater on the south-polar surface of4 Vesta, which is the main-belt's second-most-massive asteroid after1 Ceres. It orbits the Sun in theinner main-belt at a distance of 2.1–2.7 AU once every 3 years and 9 months (1,378 days). Its orbit has aneccentricity of 0.13 and aninclination of 6° with respect to theecliptic.[1]
First identified as1934 NE atJohannesburg Observatory, the body's first used observation was taken atGoethe Link Observatory in 1957, when it was identified as1957 QH, extending the asteroid'sobservation arc by 15 years prior to its official discovery observation.[10]
In October 2010, a rotationallightcurve ofZyskin was obtained from photometric observations made at thePalomar Transient Factory in California. Lightcurve analysis gave arotation period of 3.920 hours with a brightness variation of 0.08magnitude (U=2).[8]
According to the survey carried out by NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Zyskin measures between 10.44 and 12.8 kilometers in diameter, and its surface has analbedo between 0.10 and 0.18.[4][5][6][7] TheCollaborative Asteroid Lightcurve Link assumes a standard albedo forS-type asteroids of 0.20 and calculates a diameter of 8.9 kilometers with anabsolute magnitude of 12.61.[3]
Thisminor planet was named in honor of Lev Yur'evich Zyskin, professor at the Crimean Medical Institute, who was head of its Pulmonary Surgery Center.[2] Lyudmila Zhuravleva also discovered1858 Lobachevskij on the same day she discovered2098 Zyskin. She is a prolific astronomer with more than 200 minor planets discovered between 1972 and 1992 and (still) ranks in 61st position on the Minor Planet Center's discoverer-list as of 2015.[12] The official naming citation was published by theMinor Planet Center on 1 April 1980 (M.P.C. 5283).[13]
