1522 Kokkola
| Discovery [1] | |
|---|---|
| Discovered by | L. Oterma |
| Discovery site | Turku Observatory |
| Discovery date | 18 November 1938 |
| Designations | |
| MPC designation | 1522 Kokkola |
Named after |
Kokkola (Finnish town)[2] |
| 1938 WO · 1949 WB | |
| main-belt · Vestoid [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 77.49 yr (28304 days) |
| Aphelion | 2.5400 AU (379.98 Gm) |
| Perihelion | 2.1977 AU (328.77 Gm) |
| 2.3689 AU (354.38 Gm) | |
| Eccentricity | 0.072249 |
| 3.65 yr (1331.7 d) | |
| 87.975° | |
| 0° 16m 13.188s / day | |
| Inclination | 5.3508° |
| 60.626° | |
| 30.832° | |
| Earth MOID | 1.21439 AU (181.670 Gm) |
| Jupiter MOID | 2.58471 AU (386.667 Gm) |
| Jupiter Tisserand parameter | 3.537 |
| Physical characteristics | |
| Dimensions |
9.781±0.080 km[4] 8.65±0.57 km[5] 9.57 km (derived)[3] |
| 5.83 h (0.243 d)[1][6] | |
|
0.1924±0.0374[4] 0.252±0.025[5] 0.20 (assumed)[3] | |
|
B–V = 0.880 U–B = 0.510 S [3] | |
| 12.43[1] | |
|
| |
1522 Kokkola, provisional designation 1938 WO, is a stony asteroid from the inner regions of the asteroid belt, about 9 kilometers in diameter. It was discovered by pioneering Finnish female astronomer Liisi Oterma at the Turku Observatory, Finland, on 18 November 1938.[7]
The S-type asteroid orbits the Sun at a distance of 2.2–2.5 AU once every 3 years and 8 months (1,331 days). Its orbit shows an eccentricity of 0.07 and is tilted by 5 degrees to the plane of the ecliptic. It has a rotation period of 5.83 hours[6] and an albedo between 0.19 and 0.24, based on observations by the Wide-field Infrared Survey Explorer and its subsequent NEOWISE mission.[4][5]
The asteroid was named in honour of the Finnish town and port on the Gulf of Bothnia, Kokkola.[2]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 1522 Kokkola (1938 WO)" (2015-11-22 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1522) Kokkola. Springer Berlin Heidelberg. p. 121. ISBN 978-3-540-29925-7. Retrieved 7 December 2015.
- 1 2 3 4 "LCDB Data for (1522) Kokkola". Asteroid Lightcurve Database (LCDB). Retrieved 7 December 2015.
- 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; McMillan, R. S.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407
. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 7 December 2015. - 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 7 December 2015.
- 1 2 Binzel, R. P. (October 1987). "A photoelectric survey of 130 asteroids". Icarus: 135–208. Bibcode:1987Icar...72..135B. doi:10.1016/0019-1035(87)90125-4. ISSN 0019-1035. Retrieved 7 December 2015.
- ↑ "1522 Kokkola (1938 WO)". Minor Planet Center. Retrieved 7 December 2015.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1522 Kokkola at the JPL Small-Body Database
