1143 Odysseus

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1143 Odysseus
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 28 January 1930
Designations
MPC designation (1143) Odysseus
Pronunciation /əˈdɪsiəs/ · ə-DIS-ee-əs
Named after
Odysseus Laertiades
(Greek mythology)[2]
1930 BH
Jupiter trojan[1][3][4]
Greek[5][6] · background[6]
Orbital characteristics[3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc 20.27 yr (7,404 d)
Aphelion 5.7183 AU
Perihelion 4.7805 AU
5.2494 AU
Eccentricity 0.0893
12.03 yr (4,393 d)
183.79°
0° 4m 54.84s / day
Inclination 3.1374°
221.28°
236.63°
Jupiter MOID 0.0896 AU
TJupiter 2.9890
Physical characteristics
Dimensions 126 km × 126 km (occ.)[7][8]
Mean diameter
114.62±0.59 km[9]
125.64±3.7 km[10]
130.81±3.51 km[11]
10.029±0.001 h[12][a]
10.079±0.194 h[13]
10.109±0.0036 h[14]
10.111±0.004 h[15]
10.1120±0.0005 h[16]
10.114±0.079 h[17]
10.125±0.005 h[18]
12 h (poor)[19]
0.050±0.007[9]
0.072±0.005[11]
0.0753±0.005[10]
D (Tholen)[3][4]
D (Bus–DeMeo)[20]
U–B = 0.241±030[3]
B–V = 0.794±038[3]
B–V = 0.740±0.030[16]
V–R = 0.480±0.020[16]
V–I = 0.860±0.015[4]
7.93[1][3][4][10][11]
8.111±0.001[14]
8.15±0.36[21]
8.57[9][16]

1143 Odysseus (/əˈdɪsiəs/ ə-DIS-ee-əs), 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[edit]

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]

Physical characteristics[edit]

Odysseus is a dark D-type asteroid in both the Tholen classification and Bus–DeMeo classification.[7]

Diameter and albedo[edit]

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.[9][10][11]

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.[7][8]

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]

List of largest Jupiter Trojans above 50 km
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Largest Jupiter Trojans by survey(A)
(mean-diameter in kilometers; YoD: Year of Discovery)
Designation WISE IRAS Akari Ln RP V–I YoD Ref
624 Hektor 225 233 230.99 L4 6.92 0.930 1907 list
617 Patroclus 140.362 140.92 140.85 L5 102.80 0.830 1906 list
911 Agamemnon 131.038 166.66 185.30 L4 6.59 0.980 1919 list
588 Achilles 130.099 135.47 133.22 L4 7.31 0.940 1906 list
3451 Mentor 126.288 116.30 117.91 L5 7.70 0.770 1984 list
3317 Paris 118.790 116.26 120.45 L5 7.09 0.950 1984 list
1867 Deiphobus 118.220 122.67 131.31 L5 58.66 0.930 1971 list
1172 Äneas 118.020 142.82 148.66 L5 8.71 0.950 1930 list
1437 Diomedes 117.786 164.31 172.60 L4 24.49 0.810 1937 list
1143 Odysseus 114.624 125.64 130.81 L4 10.11 0.860 1930 list
2241 Alcathous 113.682 114.63 118.87 L5 7.69 0.940 1979 list
659 Nestor 112.320 108.87 107.06 L4 15.98 0.790 1908 list
3793 Leonteus 112.046 86.26 87.58 L4 5.62 0.780 1985 list
3063 Makhaon 111.655 116.14 114.34 L4 8.64 0.830 1983 list
1583 Antilochus 108.842 101.62 111.69 L4 31.54 0.950 1950 list
884 Priamus 101.093 96.29 119.99 L5 6.86 0.900 1917 list
1208 Troilus 100.477 103.34 111.36 L5 56.17 0.740 1931 list
1173 Anchises 99.549 126.27 120.49 L5 11.60 0.780 1930 list
2207 Antenor 97.658 85.11 91.32 L5 7.97 0.950 1977 list
2363 Cebriones 95.976 81.84 84.61 L5 20.05 0.910 1977 list
4063 Euforbo 95.619 102.46 106.38 L4 8.85 0.950 1989 list
2357 Phereclos 94.625 94.90 98.45 L5 14.39 0.960 1981 list
4709 Ennomos 91.433 80.85 80.03 L5 12.28 0.690 1988 list
2797 Teucer 89.430 111.14 113.99 L4 10.15 0.920 1981 list
2920 Automedon 88.574 111.01 113.11 L4 10.21 0.950 1981 list
(15436) 1998 VU30 87.646 85.71 78.63 L4 8.97 0.870 1998 list
3596 Meriones 87.380 75.09 73.28 L4 12.96 0.830 1985 list
2893 Peiroos 86.884 87.46 86.76 L5 8.96 0.950 1975 list
4086 Podalirius 85.495 86.89 85.98 L4 10.43 0.870 1985 list
4060 Deipylos 84.043 79.21 86.79 L4 9.30 0.760 1987 list
1404 Ajax 83.990 81.69 96.34 L4 29.38 0.960 1936 list
4348 Poulydamas 82.032 70.08 87.51 L5 9.91 0.840 1988 list
5144 Achates 80.958 91.91 89.85 L5 5.96 0.920 1991 list
4833 Meges 80.165 87.33 89.39 L4 14.25 0.940 1989 list
2223 Sarpedon 77.480 94.63 108.21 L5 22.74 0.880 1977 list
(4489) 1988 AK 76.595 92.93 95.02 L4 12.58 0.950 1988 list
2260 Neoptolemus 76.435 71.65 81.28 L4 8.18 0.950 1975 list
5254 Ulysses 76.147 78.34 80.00 L4 28.72 0.970 1986 list
(3708) 1974 FV1 75.661 79.59 76.75 L5 6.55 0.980 1974 list
2674 Pandarus 74.267 98.10 101.72 L5 8.48 1.000 1982 list
3564 Talthybius 73.730 68.92 74.11 L4 40.59 0.900 1985 list
4834 Thoas 72.331 86.82 96.21 L4 18.19 0.950 1989 list
(7641) 1986 TT6 71.839 68.97 75.28 L4 27.77 0.980 1986 list
3540 Protesilaos 70.225 76.84 87.66 L4 8.95 0.940 1973 list
(11395) 1998 XN77 68.977 64.71 67.78 L4 17.38 1998 list
(4035) 1986 WD 68.733 68.23 66.99 L4 13.47 0.970 1986 list
5264 Telephus 68.472 73.26 81.38 L4 9.53 0.970 1991 list
1868 Thersites 68.163 70.08 78.89 L4 10.48 0.960 1960 list
(9799) 1996 RJ 68.033 64.87 72.42 L4 21.52 0.910 1996 list
4068 Menestheus 67.625 62.37 68.46 L4 14.40 0.950 1973 list
(23135) 2000 AN146 66.230 58.29 68.50 L4 8.69 0.860 2000 list
2456 Palamedes 65.916 91.66 99.60 L4 7.24 0.920 1966 list
3709 Polypoites 65.297 99.09 85.23 L4 10.04 1.000 1985 list
1749 Telamon 64.898 81.06 69.14 L4 16.98 0.970 1949 list
3548 Eurybates 63.885 72.14 68.40 L4 8.71 0.730 1973 list
4543 Phoinix 63.836 62.79 69.54 L4 38.87 1.200 1989 list
12444 Prothoon 63.835 64.31 62.41 L5 15.82 1996 list
4836 Medon 63.277 67.73 78.70 L4 9.82 0.920 1989 list
(16070) 1999 RB101 63.191 64.13 68.98 L5 20.24 0.960 1999 list
(15440) 1998 WX4 62.519 66.48 71.88 L4 21.43 0.970 1998 list
(4715) 1989 TS1 62.097 63.91 65.93 L5 8.81 0.850 1989 list
(A) Used sources: WISE/NEOWISE catalog (Grav, 2012); IRAS data (SIMPS v.6 catalog); and Akari catalog (Usui, 2011)
RP: rotation period and V–I (color index) taken from the LCDB

Note: missing data was completed with figures from the JPL SBDB (query) and from the LCDB (query form) for the
WISE/NEOWISE and SIMPS catalogs, respectively. These figures are given in italics.

Rotation period[edit]

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][12][13][14][15][16][18][19]

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][17]

Naming[edit]

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.

Notes[edit]

  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 Dec 2012 at Archive.is

References[edit]

  1. ^ a b c d e "1143 Odysseus (1930 BH)". Minor Planet Center. Retrieved 3 March 2018. 
  2. ^ a b c Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1143) Odysseus. Springer Berlin Heidelberg. p. 97. ISBN 978-3-540-00238-3. Retrieved 3 March 2018. 
  3. ^ 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. ^ a b c d e f g h "LCDB Data for (1143) Odysseus". Asteroid Lightcurve Database (LCDB). Retrieved 3 March 2018. 
  5. ^ a b "List of Jupiter Trojans". Minor Planet Center. 2 February 2018. Retrieved 30 May 2018. 
  6. ^ a b c "Asteroid (1143) Odysseus – Proper elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 30 May 2018. 
  7. ^ a b c "Asteroid 1143 Odysseus". Small Bodies Data Ferret. Retrieved 30 May 2018. 
  8. ^ 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. Bibcode:2016PDSS..243.....D. Retrieved 30 May 2018.  list and timings
  9. ^ 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" (PDF). The Astrophysical Journal. 759 (1): 10. arXiv:1209.1549Freely accessible. Bibcode:2012ApJ...759...49G. doi:10.1088/0004-637X/759/1/49. Retrieved 9 June 2018.  (online catalog)
  10. ^ 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. Bibcode:2004PDSS...12.....T. Retrieved 15 June 2018. 
  11. ^ 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. Retrieved 15 June 2018.  (online, AcuA catalog p. 153)
  12. ^ 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. 
  13. ^ 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:1609.02760Freely accessible. Bibcode:2017A&A...599A..44S. doi:10.1051/0004-6361/201629401. Retrieved 3 March 2018. 
  14. ^ 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:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 3 March 2018. 
  15. ^ 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 30 May 2018. 
  16. ^ 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. 
  17. ^ 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. Retrieved 3 March 2018. 
  18. ^ 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. 
  19. ^ a b Binzel, Richard P.; Sauter, Linda M. (February 1992). "Trojan, Hilda, and Cybele asteroids - New lightcurve observations and analysis". Icarus: 222–238. Bibcode:1992Icar...95..222B. doi:10.1016/0019-1035(92)90039-A. ISSN 0019-1035. Retrieved 3 March 2018. 
  20. ^ 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.  (Catalog)
  21. ^ 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" (PDF). Icarus. 261: 34–47. arXiv:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 3 March 2018. 

External links[edit]