1143 Odysseus

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1143 Odysseus
Discovery[1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date28 January 1930
Designations
(1143) Odysseus
Pronunciation/oʊˈdɪsiːəs/[7]
Named after
Odysseus Laertiades
(Greek mythology)[2]
1930 BH
Minor planet category
Jupiter trojan[1][3][4]
Greek[5][6] · background[6]
Orbital characteristics[3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc20.27 yr (7,404 d)
Aphelion5.7183 AU
Perihelion4.7805 AU
5.2494 AU
Eccentricity0.0893
12.03 yr (4,393 d)
183.79°
0° 4m 54.84s / day
Inclination3.1374°
221.28°
236.63°
Jupiter MOID0.0896 AU
TJupiter2.9890
Physical characteristics
Dimensions126 km × 126 km (occ.)[8][9]
Mean diameter
114.62±0.59 km[10]
125.64±3.7 km[11]
130.81±3.51 km[12]
10.029±0.001 h[13][a]
10.079±0.194 h[14]
10.109±0.0036 h[15]
10.111±0.004 h[16]
10.1120±0.0005 h[17]
10.114±0.079 h[18]
10.125±0.005 h[19]
12 h (poor)[20]
0.050±0.007[10]
0.072±0.005[12]
0.0753±0.005[11]
D (Tholen)[3][4]
D (Bus–DeMeo)[21]
U–B = 0.241±030[3]
B–V = 0.794±038[3]
B–V = 0.740±0.030[17]
V–R = 0.480±0.020[17]
V–I = 0.860±0.015[4]
Absolute magnitude (H)
7.93[1][3][4][11][12]
8.111±0.001[15]
8.15±0.36[22]
8.57[10][17]

1143 Odysseus /oʊˈdɪsiːəs/, provisional designation 1930 BH, is a large Jupiter trojan located in the Greek camp of Jupiter's orbit. It was discovered on 28 January 1930, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany,[1] and later named after Odysseus, the legendary hero from Greek mythology.[2] The dark D-type asteroid has a rotation period of 10.1 hours.[4] With a diameter of approximately 125 kilometers (78 miles), it is among the 10 largest Jovian trojans.

Orbit and classification[]

Odysseus is a dark Jovian asteroid orbiting in the leading Greek camp at Jupiter's L4 Lagrangian point, 60° ahead of the Gas Giant's orbit in a 1:1 resonance (see Trojans in astronomy).[5] It is a non-family asteroid in the Jovian background population.[6]

It orbits the Sun at a distance of 4.8–5.7 AU once every 12 years (4,393 days; semi-major axis of 5.25 AU). Its orbit has an eccentricity of 0.09 and an inclination of 3° with respect to the ecliptic.[3] As a Jupiter Trojan it is in a very stable orbit. Its closest approach to any major planet will be on 5 May 2083 when it will still be 3.104 AU (464,000,000 km; 289,000,000 mi) from Mars.[b] The body's observation arc begins at Heidelberg in February 1930, three weeks after its official discovery observation.[1]

Naming[]

This minor planet was named after the ancient Greek hero Odysseus (Odysseus Laertiades) in Homer's epic poem Odyssey. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 107).[2] Another Jupiter trojan, 5254 Ulysses, is named after the Latin variant of Odysseus.

Physical characteristics[]

The largest Jupiter trojans
Trojan Diameter (km)
624 Hektor 225
617 Patroclus 140
911 Agamemnon 131
588 Achilles 130
3451 Mentor 126
3317 Paris 119
1867 Deiphobus 118
1172 Äneas 118
1437 Diomedes 118
1143 Odysseus 115
Source: JPL Small-Body Database, NEOWISE data

Odysseus is a dark D-type asteroid in both the Tholen classification and Bus–DeMeo classification.[8]

Diameter and albedo[]

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 (WISE), Odysseus measures between 114.62 and 130.81 kilometers in diameter and its surface has an albedo between 0.050 and 0.0753.[10][11][12]

The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0753 and a diameter of 125.64 kilometers based on an absolute magnitude of 7.93.[4] In May 2005, an asteroid occultation gave a best-fit dimension of 126 km × 126 km for the major and minor axis of the occultation ellipse.[8][9]

An estimated mean-diameter of 130, 125 and 114 kilometers measured by Akari, IRAS and WISE, makes Odysseus the 7th, 8th or 10th largest Jupiter Trojan, respectively.[c]

100+ largest Jupiter trojans

Rotation period[]

A large number of rotational lightcurves of Odysseus have been obtained since its first photometric observation by Richard Binzel in January 1988. In June 1994, the first accurate measurement of the asteroid's rotation period was made by Stefano Mottola using the former Bochum 0.61-metre Telescope at ESO's La Silla Observatory in northern Chile.[4][13][14][15][16][17][19][20]

As of 2018, analysis of the best-rated lightcurve from observations by the Kepler space observatory during its K2 mission observing Campaign Field 6 in September 2015, gave a well-defined period of 10.114 hours with a brightness amplitude of 0.20 magnitude (U=3).[4][18]

Notes[]

  1. ^ Lightcurve plot of (1143) Odysseus from 2014 by Robert Stephens at the Center for Solar System Studies (U81). Rotation period 10.029±0.001 hours with an amplitude of 0.15±0.02 mag. Quality code is 2+. Summary figures at the LCDB and CS3.
  2. ^ "Observer Table for Asteroid 1143 Odysseus" obtained by using JPL Horizons On-Line Ephemeris System (link), with Observer Location set to "Mars (body center) [500@499]".
  3. ^ JPL Small-Body Database Search Engine: orbital class (TJN) and diameter > 50 (km) Archived 13 December 2012 at archive.today

References[]

  1. ^ Jump up to: a b c d e "1143 Odysseus (1930 BH)". Minor Planet Center. Retrieved 3 March 2018.
  2. ^ Jump up to: a b c Schmadel, Lutz D. (2007). "(1143) Odysseus". Dictionary of Minor Planet Names – (1143) Odysseus. Springer Berlin Heidelberg. p. 97. doi:10.1007/978-3-540-29925-7_1144. ISBN 978-3-540-00238-3.
  3. ^ Jump up to: a b c d e f g "JPL Small-Body Database Browser: 1143 Odysseus (1930 BH)" (2018-04-17 last obs.). Jet Propulsion Laboratory. Retrieved 30 May 2018.
  4. ^ Jump up to: a b c d e f g h "LCDB Data for (1143) Odysseus". Asteroid Lightcurve Database (LCDB). Retrieved 3 March 2018.
  5. ^ Jump up to: a b "List of Jupiter Trojans". Minor Planet Center. 2 February 2018. Retrieved 30 May 2018.
  6. ^ Jump up to: a b c "Asteroid (1143) Odysseus – Proper elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 30 May 2018.
  7. ^ "Odysseus". Merriam-Webster Dictionary.
  8. ^ Jump up to: a b c "Asteroid 1143 Odysseus". Small Bodies Data Ferret. Retrieved 30 May 2018.
  9. ^ Jump up to: a b Dunham, D. W.; Herald, D.; Frappa, E.; Hayamizu, T.; Talbot, J.; Timerson, B. (June 2016). "Asteroid Occultations V14.0". NASA Planetary Data System: EAR-A-3-RDR-OCCULTATIONS-V14.0. Bibcode:2016PDSS..243.....D. Retrieved 30 May 2018. list and timings
  10. ^ 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. (online catalog)
  11. ^ Jump up to: a b c d 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 15 June 2018.
  12. ^ 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)
  13. ^ Jump up to: a b Stephens, Robert D.; Coley, Daniel R.; French, Linda M. (October 2014). "Trojan Asteroids Observed from CS3: 2014 January-May". The Minor Planet Bulletin. 41 (4): 210–212. Bibcode:2014MPBu...41..210S. ISSN 1052-8091. Retrieved 3 March 2018.
  14. ^ Jump up to: a b Szabó, Gy. M.; Pál, A.; Kiss, Cs.; Kiss, L. L.; Molnár, L.; Hanyecz, O.; et al. (March 2017). "The heart of the swarm: K2 photometry and rotational characteristics of 56 Jovian Trojan asteroids". Astronomy and Astrophysics. 599: 13. arXiv:1609.02760. Bibcode:2017A&A...599A..44S. doi:10.1051/0004-6361/201629401. S2CID 119275951. Retrieved 3 March 2018.
  15. ^ Jump up to: a b c Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. S2CID 8342929. Retrieved 3 March 2018.
  16. ^ Jump up to: 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.
  17. ^ Jump up to: a b c d e Shevchenko, V. G.; Belskaya, I. N.; Slyusarev, I. G.; Krugly, Yu. N.; Chiorny, V. G.; Gaftonyuk, N. M.; et al. (January 2012). "Opposition effect of Trojan asteroids". Icarus. 217 (1): 202–208. Bibcode:2012Icar..217..202S. doi:10.1016/j.icarus.2011.11.001. Retrieved 3 March 2018.
  18. ^ Jump up to: a b Ryan, Erin Lee; Sharkey, Benjamin N. L.; Woodward, Charles E. (March 2017). "Trojan Asteroids in the Kepler Campaign 6 Field". The Astronomical Journal. 153 (3): 12. Bibcode:2017AJ....153..116R. doi:10.3847/1538-3881/153/3/116.
  19. ^ Jump up to: a b Molnar, Lawrence A.; Haegert, Melissa, J.; Hoogeboom, Kathleen M. (June 2008). "Lightcurve Analysis of an Unbiased Sample of Trojan Asteroids". The Minor Planet Bulletin. 35 (2): 82–84. Bibcode:2008MPBu...35...82M. ISSN 1052-8091. Retrieved 3 March 2018.
  20. ^ Jump up to: a b Binzel, Richard P.; Sauter, Linda M. (February 1992). "Trojan, Hilda, and Cybele asteroids - New lightcurve observations and analysis". Icarus. 95 (2): 222–238. Bibcode:1992Icar...95..222B. doi:10.1016/0019-1035(92)90039-A. ISSN 0019-1035. Retrieved 3 March 2018.
  21. ^ DeMeo, Francesca E.; Binzel, Richard P.; Slivan, Stephen M.; Bus, Schelte J. (July 2009). "An extension of the Bus asteroid taxonomy into the near-infrared". Icarus. 202 (1): 160–180. Bibcode:2009Icar..202..160D. doi:10.1016/j.icarus.2009.02.005. Retrieved 7 July 2018. (Catalog Archived 29 March 2018 at the Wayback Machine)
  22. ^ 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. S2CID 53493339.

External links[]

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