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23549 Epicles (1994 ES6)
Classification: Jupiter Trojan          SPK-ID: 2023549
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04436608307842286 7.7153e-08  
a 5.259330885175173 1.6627e-07 au
q 5.025994974186576 4.4534e-07 au
i 9.045179278278471 7.4675e-06 deg
node 123.9989292424863 5.2968e-05 deg
peri 68.39159443861892 0.00011699 deg
M 286.8824457992083 0.00011067 deg
tp 2458495.273934159166
0.0013778 JED
period 4405.48948632382
n .08171623178708426 3.8751e-09 deg/d
Q 5.49266679616377 1.7365e-07 au
  Orbit Determination Parameters
   # obs. used (total)      722  
   data-arc span      22324 days (61.12 yr)  
   first obs. used      1954-11-24  
   last obs. used      2016-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55898  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 20:20:17  

Additional Information
 Earth MOID = 4.03889 au 
 Jupiter MOID = .121824 au 
 T_jup = 2.973 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.7 mag n/a MPO333036  

23549 Epicles           Discovered 1994 Mar. 9 by E. W. Elst at Caussols.
Epicles, a Lycian warrior fighting for the Trojan forces, was killed by Ajax, who hit him on the head with a heavy stone.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100527/MPCPages.arcLast Updated: 2010-12-06
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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