1583 Antilochus

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1583 Antilochus
Discovery[1]
Discovered by Sylvain Julien Victor Arend
Discovery date 19 September 1950
Designations
Named after
Antilochus
1950 SA
Jupiter Trojan
Orbital characteristics[1][2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 32616 days (89.30 yr)
Aphelion 5.39305 AU (806.789 Gm)
Perihelion 4.86165 AU (727.292 Gm)
5.12735 AU (767.041 Gm)
Eccentricity 0.051820
11.61 yr (4240.70 d)
13.17 km/s
188.174°
0° 5m 5.61s /day
Inclination 28.5209°
221.392°
188.077°
Earth MOID 3.87099 AU (579.092 Gm)
Jupiter MOID 0.0324682 AU (4.85717 Gm)
Physical characteristics
Dimensions 101.6 km
Mean radius
50.81 ± 1.6 km
Mass 1.1×1018 kg
Mean density
2.0 g/cm³
Equatorial surface gravity
0.0284 m/s²
Equatorial escape velocity
0.0537 km/s
31.52 h (1.313 d)
? d
?
?
0.0633 ± 0.004
Temperature ~123 K
D
8.60

1583 Antilochus 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 Antilochus. It was discovered by Sylvain Julien Victor Arend on September 19, 1950, in Uccle, Belgium.

References[edit]

  1. ^ "The Asteroid Orbital Elements Database". astorb. Lowell Observatory. 
  2. ^ "JPL Small-Body Database Browser: 1583 Antilochus (1950 SA)". Jet Propulsion Laboratory. Retrieved 31 March 2016. 

External links[edit]