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9818 Eurymachos (6591 P-L)
Classification: Jupiter Trojan          SPK-ID: 2009818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .003370042452088543 4.93e-08  
a 5.201830776362868 9.7906e-08 au
q 5.184300385817944 2.7197e-07 au
i 7.492326810342091 5.8984e-06 deg
node 18.54898149180115 4.011e-05 deg
peri 97.83572324056625 0.00095686 deg
M 223.2293128984273 0.00095843 deg
tp 2460646.854232639839
(2024-Dec-02.35423264)
0.01156 TDB
period 4333.439688799567
11.86
0.00012234
3.349e-07
d
yr
n .08307488412276157 2.3454e-09 deg/d
Q 5.219361166907792 9.8236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1323  
   data-arc span      24281 days (66.48 yr)  
   first obs. used      1954-02-10  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50208  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:12:35  

Additional Information
 Earth MOID = 4.19768 au 
 Jupiter MOID = .251819 au 
 T_jup = 2.983 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.0   n/a MPO416820  
diameter diameter 28.076 km 3.215 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.089   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

9818 Eurymachos           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Eurymachos was one of the heroes hidden in the Wooden Horse.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 6591 P-L = 1979 GB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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