5025 Mecisteus
| Discovery [1] | |
|---|---|
| Discovered by | M. Antal |
| Discovery site | Toruń–Piwnice |
| Discovery date | 5 October 1986 |
| Designations | |
| (5025) 1986 TS6 | |
| 1986 TS6 · 1989 BX | |
| Jupiter trojan [2][3] (Greek camp) | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 29.65 yr (10,829 days) |
| Aphelion | 5.5867 AU |
| Perihelion | 4.8144 AU |
| 5.2005 AU | |
| Eccentricity | 0.0743 |
| 11.86 yr (4,332 days) | |
| 171.34° | |
| 0° 4m 59.16s / day | |
| Inclination | 11.021° |
| 347.83° | |
| 73.365° | |
| Jupiter MOID | 0.1061 AU |
| TJupiter | 2.9580 |
| Physical characteristics | |
| Dimensions | 39.84±3.64 km[4] 57.56 km (derived)[3] 57.83±4.9 km (IRAS:2)[1] |
| 250±25 h[5] | |
| 0.0635±0.012 (IRAS:2)[1] 0.084±0.009[4] 0.0404 (derived)[3] | |
| C [3] | |
| 10.3[1][3][4] 10.62±0.65[6] | |
(5025) 1986 TS6, is a carbonaceous Jupiter trojan from the Greek camp and potentially slow rotating asteroid, approximately 58 kilometers in diameter. It was discovered on 5 October 1986, by Slovak astronomer Milan Antal at the Toruń Centre for Astronomy in Piwnice, Poland.[2]
The dark Jovian asteroid is orbiting in the leading Greek camp at Jupiter's L4 Lagrangian point, 60° ahead of its orbit (see Trojans in astronomy). It orbits the Sun at a distance of 4.8–5.6 AU once every 11 years and 10 months (4,332 days). Its orbit has an eccentricity of 0.07 and an inclination of 11° with respect to the ecliptic.[1]
Based on a large-scale survey performed by Pan-STARRS, the C-type asteroid has also been rated as a transitional CX-type, an intermediate between the carbonaceous C-type and X-type asteroids.[6] In November 2009, the body was observed in a photometric light-curve survey of 80 Jupiter trojans, which rendered a very long rotation period of 250±25 hours with a brightness variation of 0.2 in magnitude (U=1).[5] However, the Collaborative Asteroid Lightcurve Link (CALL) considers the result as incorrect.[3]
According to the surveys carried out by the Infrared Astronomical Satellite (IRAS), and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 57.8 and 39.8 kilometers in diameter with an albedo of 0.064 and 0.084, respectively.[1][4] CALL agrees with the results obtained by IRAS, assumes an even lower albedo of 0.04, and calculates a similar diameter of 57.6 kilometers.[3]
References
- ^ a b c d e f g "JPL Small-Body Database Browser: 5025 (1986 TS6)" (2016-05-29 last obs.). Jet Propulsion Laboratory. Retrieved June 2016.
{{cite web}}: Check date values in:|accessdate=(help) - ^ a b "5025 (1986 TS6)". Minor Planet Center. Retrieved June 2016.
{{cite web}}: Check date values in:|accessdate=(help) - ^ a b c d e f g "LCDB Data for (5025)". Asteroid Lightcurve Database (LCDB). Retrieved June 2016.
{{cite web}}: Check date values in:|accessdate=(help) - ^ a b c d 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 June 2016.
{{cite journal}}: Check date values in:|access-date=(help) - ^ a b 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 June 2016.
{{cite journal}}: Check date values in:|access-date=(help) - ^ a b 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 June 2016.
{{cite journal}}: Check date values in:|access-date=(help)
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
- 5025 Mecisteus at the JPL Small-Body Database