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8317 Eurysaces (4523 P-L)
Classification: Jupiter Trojan          SPK-ID: 2008317
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04654480493286517 4.6464e-08  
a 5.303191607372371 7.5596e-08 au
q 5.056355588485617 2.6416e-07 au
i .9461349045131792 5.2965e-06 deg
node 208.0978793674288 0.00026317 deg
peri 114.6085471023984 0.00026885 deg
M 46.67692100168177 5.2652e-05 deg
tp 2458422.132201884454
(2018-Oct-30.63220188)
0.00065709 TDB
period 4460.714264209812
12.21
9.538e-05
2.611e-07
d
yr
n .08070456403998605 1.7256e-09 deg/d
Q 5.550027626259125 7.9115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1705  
   data-arc span      21864 days (59.86 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:58:02  

Additional Information
 Earth MOID = 4.04398 au 
 Jupiter MOID = .118041 au 
 T_jup = 2.998 
[ 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 11.1   n/a MPO458912  
diameter diameter 26.210 km 0.394 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.076   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

8317 Eurysaces           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named for the son of Ajax by Tecmessa, known for his enormous shield.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981005/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 4523 P-L = 1977 CE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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