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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .003830351029081888 4.3301e-08  
a 5.200388259563039 9.3571e-08 au
q 5.180468947041396 2.5512e-07 au
i 7.493368330961572 5.7839e-06 deg
node 18.54423467702449 3.4626e-05 deg
peri 97.64211327690171 0.00083996 deg
M 240.0885711439606 0.00084193 deg
tp 2460643.313369195529
(2024-Nov-28.81336920)
0.010151 TDB
period 4331.637258146389
11.86
0.00011691
3.201e-07
d
yr
n .08310945227995674 2.2431e-09 deg/d
Q 5.220307572084681 9.393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1651  
   data-arc span      24468 days (66.99 yr)  
   first obs. used      1954-02-10  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47524  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:38:12  

Additional Information
 Earth MOID = 4.19515 au 
 Jupiter MOID = .252086 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 11.09   n/a E2021B10  
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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