1143 Odysseus

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1143 Odysseus
Discovery[1]
Discovered by Karl Wilhelm Reinmuth
Discovery date 28 January 1930
Designations
MPC designation 1143
Named after
Odysseus Laertiades
1930 BH
Jupiter Trojan[1]
Orbital characteristics[1]
Epoch 2012-Mar-14
Aphelion 5.7325 AU (Q)
Perihelion 4.7700 AU (q)
5.2512 AU (a)
Eccentricity 0.09163
12.03 yr
3.3469° (M)
Inclination 3.1377°
221.29°
236.44°
Physical characteristics
Dimensions 126 km (IRAS)[1]
10.125 hr [1]
Albedo 0.0753 [1]
14.27 to 16.27
7.93 [1]

1143 Odysseus is a Jupiter Trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of trojan asteroids. It was named after the Greek hero Odysseus Laertiades in Homer's epic poem The Odyssey. It was discovered by Karl Wilhelm Reinmuth in 1930.

As a Jupiter Trojan it is in a very stable orbit. Its closest approach to any major planet will be on 2083-May-04 when it will still be 3.104 AU (464,400,000 km; 288,500,000 mi) from Mars.[2]

Based on IRAS data, Odysseus is 126 km in diameter and is about the 8th largest Jupiter Trojan known.[3]

The largest Jupiter Trojans
Trojan Diameter (km)
624 Hektor 225
911 Agamemnon 167
1437 Diomedes 164
1172 Äneas 143
617 Patroclus 141
588 Achilles 135
1173 Anchises 126
1143 Odysseus 126
Source: JPL Small-Body Database, IRAS data

Photometric observations of this asteroid during 1994 were used to build a light curve showing a rotation period of 10.111 ± 0.004 hours with a brightness variation of 0.22 ± 0.01 magnitude.[4]

References[edit]

  1. ^ a b c d e f g "JPL Small-Body Database Browser: 1143 Odysseus (1930 BH)" (2012-01-24 last obs). Jet Propulsion Laboratory. Retrieved 2012-03-31. 
  2. ^ Horizons output. "Observer Table for Asteroid 1143 Odysseus (1930 BH)". Retrieved 2012-03-31.  (Observer Location:@Mars)
  3. ^ "JPL Small-Body Database Search Engine: orbital class (TJN) and diameter > 50 (km)". JPL's Solar System Dynamics Group. Retrieved 2012-03-28. 
  4. ^ Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; Hahn, Gerhard; Schober, Hans-Josef; Lahulla, Felix; Delbò, Marco; Lagerkvist, Claes-Ingvar (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal 141 (5): 170. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170. 

External links[edit]