(4035) 1986 WD
| Discovery [1] | |
|---|---|
| Discovered by |
K. Suzuki T. Urata |
| Discovery site | Toyota Obs. (881) |
| Discovery date | 22 November 1986 |
| Designations | |
| MPC designation | (4035) 1986 WD |
|
1986 WD · 1973 SR4 1973 UF6 | |
|
Jupiter trojan [2] (Trojan camp) [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 42.71 yr (15,600 days) |
| Aphelion | 5.5796 AU |
| Perihelion | 4.9910 AU |
| 5.2853 AU | |
| Eccentricity | 0.0557 |
| 12.15 yr (4,438 days) | |
| 163.96° | |
| 0° 4m 51.96s / day | |
| Inclination | 12.132° |
| 233.74° | |
| 198.09° | |
| Jupiter MOID | 0.0201 AU |
| Jupiter Tisserand parameter | 2.9520 |
| Physical characteristics | |
| Dimensions |
66.99±4.45 km[4] 68.30 km (derived)[2] 68.46±5.4 km (IRAS:12)[1] 68.73±1.24 km[5] |
| 13.467±0.08 h[6] | |
|
0.054±0.008[5] 0.0600 (derived)[2] 0.0718±0.013 (IRAS:12)[1] 0.076±0.010[4] | |
| C [2] | |
|
9.30[4] 9.5[2] 9.6[1][5] 9.82±0.46[7] | |
|
| |
(4035) 1986 WD is a carbonaceous Jupiter trojan from the Greek camp, approximately 68 kilometers in diameter. It was discovered on 22 November 1986, by Japanese astronomers Kenzo Suzuki and Takeshi Urata at the Toyota Observatory (881) in Japan.[8]
The C-type Jovian asteroid orbits the Sun at a distance of 5.0–5.6 AU once every 12 years and 2 months (4,438 days). Its orbit has an eccentricity of 0.06 and an inclination of 12° with respect to the ecliptic.[1] The first identification was made at Crimea-Nauchnij in 1973, extending the asteroid's observation arc by 13 years prior to its discovery.[8]
In October 2009, a rotational light-curve was obtained by astronomer Stefano Mottola at the Calar Alto Observatory in Spain. It gave a well-defined rotation period of 13.467±0.08 hours with a brightness variation of 0.21 in magnitude (U=3), superseding a previous result obtained from La Silla's ESO 1-metre telescope in May 1991, that gave a period of 13.52±0.08 hours with an amplitude of 0.20 in magnitude (U=2).[6]
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures between 67 and 69 kilometers in diameter and its surface has an albedo between 0.054 and 0.076.[1][4][5] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.060 and a diameter of 68.3 kilometers.[2]
References
- 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: 4035 (1986 WD)" (2016-06-13 last obs.). Jet Propulsion Laboratory. Retrieved 29 June 2016.
- 1 2 3 4 5 6 "LCDB Data for (4035)". Asteroid Lightcurve Database (LCDB). Retrieved 29 June 2016.
- ↑ "List of Jupiter Trojans". Minor Planet Center. 20 June 2016. Retrieved 29 June 2016.
- 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey" (PDF). Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 29 June 2016.
- 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407
. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 29 June 2016. - 1 2 Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; et al. (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal. 141 (5): 32. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170. Retrieved 29 June 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 29 June 2016.
- 1 2 "4035 (1986 WD)". Minor Planet Center. Retrieved 29 June 2016.
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
- (4035) 1986 WD at the JPL Small-Body Database
