16560 Daitor

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16560 Daitor
Discovery [1]
Discovered byE. W. Elst
Discovery siteLa Silla Obs.
Discovery date2 November 1991
Designations
(16560) Daitor
Pronunciation/ˈdeɪtər/
Named after
Daitor [1]
(Greek mythology)
1991 VZ5 · 1998 MR21
1999 NU24
Minor planet category
Jupiter trojan [1][2]
Trojan [3] · background [4]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc62.57 yr (22,854 d)
Aphelion5.2615 AU
Perihelion4.8504 AU
5.0560 AU
Eccentricity0.0407
11.37 yr (4,152 d)
264.80°
0° 5m 12.12s / day
Inclination15.311°
100.76°
157.89°
Jupiter MOID0.0606 AU
TJupiter2.9290
Physical characteristics
Mean diameter
43.38±3.29 km[5]
43.86±0.40 km[6]
51.42±4.6 km[7]
0.0292±0.006[7]
0.041±0.006[5]
0.053±0.008[6]
C (SDSS-MOC)[8][9]
Absolute magnitude (H)
10.6[2][6]
10.7[1][10]
10.90[5]

16560 Daitor /ˈdeɪtər/ is a large 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 (see Trojans in astronomy).[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]

100+ largest Jupiter trojans

References[]

  1. ^ Jump up to: a b c d e f g h "16560 Daitor (1991 VZ5)". Minor Planet Center. Retrieved 25 June 2018.
  2. ^ Jump up to: a b c d "JPL Small-Body Database Browser: 16560 Daitor (1991 VZ5)" (2018-05-19 last obs.). Jet Propulsion Laboratory. Retrieved 25 June 2018.
  3. ^ Jump up to: a b "List of Jupiter Trojans". Minor Planet Center. 1 June 2018. Retrieved 25 June 2018.
  4. ^ Jump up to: a b "Asteroid (16560) Daitor – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 25 June 2018.
  5. ^ Jump up to: a b c d 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. (online, AcuA catalog p. 153)
  6. ^ Jump up to: a b c d 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. S2CID 119101711. Retrieved 25 June 2018. (online catalog)
  7. ^ Jump up to: a b c 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: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 25 June 2018.
  8. ^ Jump up to: a b "Asteroid 16560 Daitor". Small Bodies Data Ferret. Retrieved 25 June 2018.
  9. ^ Jump up to: a b 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 30 October 2019. (PDS data set)
  10. ^ Jump up to: a b c d "LCDB Data for (16560) Daitor". Asteroid Lightcurve Database (LCDB). Retrieved 25 June 2018.
  11. ^ Homer, Iliad, 8. 275 ff
  12. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 25 June 2018.

External links[]

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