5316 Filatov, provisional designation 1982 UB7, is a carbonaceous asteroid and potentially slow rotator from the outer region of the asteroid belt, approximately 30 kilometers in diameter.
| Discovery [1] | |
|---|---|
| Discovered by | L. G. Karachkina |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 21 October 1982 |
| Designations | |
| (5316) Filatov | |
Named after | Vladimir Filatov (ophthalmologist and surgeon)[2] |
| 1982 UB7 · 1982 XU3 1987 SF9 · 1991 LV3 | |
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 34.44 yr (12,578 days) |
| Aphelion | 3.2253 AU |
| Perihelion | 3.0919 AU |
| 3.1586 AU | |
| Eccentricity | 0.0211 |
| 5.61 yr (2,050 days) | |
| 18.907° | |
| 0° 10m 32.16s / day | |
| Inclination | 14.743° |
| 230.22° | |
| 240.87° | |
| Physical characteristics | |
| Dimensions | 22.95 km (calculated)[3] 45.693±0.511 km[4] |
| 1061.3756±76.36 h[5] | |
| 0.019±0.003[4] 0.057 (assumed)[3] | |
| C [3] | |
| 11.474±0.002 (R)[5] · 11.60[4] · 11.8[1] · 11.92[3] · 11.97±0.48[6] | |
The asteroid was discovered on 21 October 1982, by Russian astronomer Lyudmila Karachkina at the Crimean Astrophysical Observatory in Nauchnij on the Crimean peninsula.[7] It was later named for surgeon Vladimir Filatov.[2]
Orbit and classification
editFilatov orbits the Sun in the outer main-belt at a distance of 3.1–3.2 AU once every 5 years and 7 months (2,050 days). Its orbit has an eccentricity of 0.02 and an inclination of 15° with respect to the ecliptic.[1] The body's observation arc begins at Nauchnij, 2 days after its official discovery observation.[7]
Physical characteristics
editPotentially slow rotator
editIn November 2010, a rotational lightcurve of Filatov was obtained from photometric observations in the R-band at the Palomar Transient Factory in California. It gave an exceptionally long rotation period of 1061 hours with a brightness variation of 0.07 magnitude (U=1).[5]
However, the fragmentary lightcurve has received a low quality rating by the Collaborative Asteroid Lightcurve Link which means that the result could be completely wrong (also see potentially slow rotator).[3][5]
Diameter and albedo
editAccording to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Filatov measures 45.69 kilometers in diameter, and its surface has an albedo of 0.019,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 22.95 kilometers with an absolute magnitude of 11.92.[3]
Naming
editThis minor planet was named in honor of Vladimir Filatov (1875–1956), a Russian and Ukrainian ophthalmologist and surgeon.[2] The official naming citation was published by the Minor Planet Center on 1 September 1993 (M.P.C. 22508).[8]
References
edit- ^ a b c d "JPL Small-Body Database Browser: 5316 Filatov (1982 UB7)" (2017-03-29 last obs.). Jet Propulsion Laboratory. Retrieved 21 June 2017.
- ^ a b c Schmadel, Lutz D. (2007). "(5316) Filatov". Dictionary of Minor Planet Names – (5316) Filatov. Springer Berlin Heidelberg. p. 456. doi:10.1007/978-3-540-29925-7_5131. ISBN 978-3-540-00238-3.
- ^ a b c d e f g "LCDB Data for (5316) Filatov". Asteroid Lightcurve Database (LCDB). Retrieved 16 December 2016.
- ^ a b c d Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (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 16 December 2016.
- ^ a b c d Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 16 December 2016.
- ^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 16 December 2016.
- ^ a b "5316 Filatov (1982 UB7)". Minor Planet Center. Retrieved 16 December 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 16 December 2016.
External links
edit- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- 5316 Filatov at AstDyS-2, Asteroids—Dynamic Site
- 5316 Filatov at the JPL Small-Body Database
