(5476) 1989 TO11
| Discovery [1] | |
|---|---|
| Discovered by | S. J. Bus |
| Discovery site | Cerro Tololo |
| Discovery date | 2 October 1989 |
| Designations | |
| MPC designation | (5476) 1989 TO11 |
| 1989 TO11 · 1990 UW13 | |
|
Jupiter trojan [2] (Trojan camp) [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 63.39 yr (23,153 days) |
| Aphelion | 5.4797 AU |
| Perihelion | 4.7385 AU |
| 5.1091 AU | |
| Eccentricity | 0.0725 |
| 11.55 yr (4,218 days) | |
| 183.54° | |
| 0° 5m 7.08s / day | |
| Inclination | 13.703° |
| 198.56° | |
| 95.788° | |
| Jupiter MOID | 0.1156 AU |
| Jupiter Tisserand parameter | 2.9390 |
| Physical characteristics | |
| Dimensions |
35.10±0.47 km[4] 42.23 km (calculated)[2] |
| 5.780±0.001 h[5] | |
|
0.057 (assumed)[2] 0.099±0.019[4] | |
| C [2] | |
|
10.4[4] 10.6[1][2] 10.87±0.06[6] | |
|
| |
(5476) 1989 TO11 is a carbonaceous Jupiter trojan from the Trojan camp, approximately 40 kilometers in diameter. It was discovered on 2 October 1989, by American astronomer Schelte Bus at the Cerro Tololo Inter-American Observatory in Chile.[7]
The C-type Jovian asteroid orbits the Sun at a distance of 4.7–5.5 AU once every 11 years and 7 months (4,218 days). Its orbit has an eccentricity of 0.07 and an inclination of 14° with respect to the ecliptic.[1] The first precovery was taken at Palomar Observatory in 1952, extending the asteroid's observation arc by 37 years prior to its discovery.[7]
Photometric observations of this asteroid during 1994 were used to build a light curve showing a rotation period of 5.780 ± 0.001 hours with a brightness variation of 0.30 ± 0.01 magnitude.[5]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 35.1 kilometers in diameter and its surface has an albedo of 0.099,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 42.2 kilometers.[2]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 5476 (1989 TO11)" (2016-01-14 last obs.). Jet Propulsion Laboratory. Retrieved 29 June 2016.
- 1 2 3 4 5 6 "LCDB Data for (5476)". 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 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 "5476 (1989 TO11)". 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 (5001)-(10000) – Minor Planet Center
- (5476) 1989 TO11 at the JPL Small-Body Database
