16560 Daitor
Discovery [1] | |
---|---|
Discovered by | E. W. Elst |
Discovery site | La Silla Obs. |
Discovery date | 2 November 1991 |
Designations | |
MPC designation | (16560) Daitor |
Named after |
Daitor [1] (Greek mythology) |
1991 VZ5 · 1998 MR21 1999 NU24 | |
Jupiter trojan [1][2] Trojan [3] · background [4] | |
Orbital characteristics [2] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 62.57 yr (22,854 d) |
Aphelion | 5.2615 AU |
Perihelion | 4.8504 AU |
5.0560 AU | |
Eccentricity | 0.0407 |
11.37 yr (4,152 d) | |
264.80° | |
0° 5m 12.12s / day | |
Inclination | 15.311° |
100.76° | |
157.89° | |
Jupiter MOID | 0.0606 AU |
TJupiter | 2.9290 |
Physical characteristics | |
Mean diameter |
±3.29 km 43.38[5] ±0.40 km 43.86[6] ±4.6 km 51.42[7] |
±0.006 0.0292[7] ±0.006 0.041[5] ±0.008 0.053[6] | |
C (SDSS-MOC)[8][9] | |
10.6[2][6] 10.7[1][10] 10.90[5] | |
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16560 Daitor, provisional designation 1991 VZ5, is a larger Jupiter trojan from the Trojan camp, approximately 44 kilometers (27 miles) in diameter. It was discovered on 2 November 1991, by Belgian astronomer Eric Elst at the La Silla site of the European Southern Observatory in Chile.[1] The carbonaceous C-type asteroid is one of the largest Jupiter trojans with an unknown rotation period.[10] It was named after the Trojan warrior Daitor from Greek mythology.[1]
Orbit and classification
Daitor is a Jovian asteroid in the so-called Trojan camp, located in the L5 Lagrangian point, 60° behind Jupiter, orbiting in a 1:1 resonance with the Gas Giant .[3]
It is also a non-family asteroid of the Jovian background population.[4] It orbits the Sun at a distance of 4.9–5.3 AU once every 11 years and 4 months (4,152 days; semi-major axis of 5.06 AU). Its orbit has an eccentricity of 0.04 and an inclination of 15° with respect to the ecliptic.[2] The body's observation arc begins with a precovery published by the Digitized Sky Survey and taken at Palomar Observatory in October 1955, more than 36 years prior to its official discovery observation at La Silla.[1]
Naming
This minor planet was named from Greek mythology after the Trojan warrior Daitor (Dai'tor), who was killed by Teucer (Teukros) during the Trojan War.[1][11] The official naming citation was published by the Minor Planet Center on 27 May 2010 (M.P.C. 70409).[12]
Physical characteristics
In the SDSS-based taxonomy, Daitor is a carbonaceous C-type,[8][9] while most Jupiter trojans are D-type asteroids.
Rotation period
As of 2018, no rotational lightcurve of Daitor has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[10]
Diameter and albedo
According to the survey carried out by the Japanese Akari satellite, the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, and the Infrared Astronomical Satellite IRAS, Daitor measures between 43.38 and 51.42 kilometers in diameter and its surface has an albedo between 0.029 and 0.053.[5][6][7] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 40.33 kilometers based on an absolute magnitude of 10.7.[10]
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References
- 1 2 3 4 5 6 7 8 "16560 Daitor (1991 VZ5)". Minor Planet Center. Retrieved 25 June 2018.
- 1 2 3 4 "JPL Small-Body Database Browser: 16560 Daitor (1991 VZ5)" (2018-05-19 last obs.). Jet Propulsion Laboratory. Retrieved 25 June 2018.
- 1 2 "List of Jupiter Trojans". Minor Planet Center. 1 June 2018. Retrieved 25 June 2018.
- 1 2 "Asteroid (16560) Daitor – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 25 June 2018.
- 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". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 25 June 2018. (online, AcuA catalog p. 153)
- 1 2 3 4 Grav, T.; Mainzer, A. K.; Bauer, J. M.; Masiero, J. R.; Nugent, C. R. (November 2012). "WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy". The Astrophysical Journal. 759 (1): 10. arXiv:1209.1549. Bibcode:2012ApJ...759...49G. doi:10.1088/0004-637X/759/1/49. Retrieved 25 June 2018. (online catalog)
- 1 2 3 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 25 June 2018.
- 1 2 "Asteroid 16560 Daitor". Small Bodies Data Ferret. Retrieved 25 June 2018.
- 1 2 Carvano, J. M.; Hasselmann, P. H.; Lazzaro, D.; Mothé-Diniz, T. (February 2010). "SDSS-based taxonomic classification and orbital distribution of main belt asteroids". Astronomy and Astrophysics. 510: 12. Bibcode:2010A&A...510A..43C. doi:10.1051/0004-6361/200913322. Retrieved 25 June 2018.
- 1 2 3 4 "LCDB Data for (16560) Daitor". Asteroid Lightcurve Database (LCDB). Retrieved 25 June 2018.
- ↑ Homer, Iliad, 8. 275 ff
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 25 June 2018.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (15001)-(20000) – Minor Planet Center
- 16560 Daitor at AstDyS-2, Asteroids—Dynamic Site
- 16560 Daitor at the JPL Small-Body Database