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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0462241952100275 4.7685e-08  
a 5.300111849532428 7.746e-08 au
q 5.055118444764661 2.7382e-07 au
i .9462748994089698 5.3067e-06 deg
node 208.0932621156448 0.00026915 deg
peri 113.9368805137233 0.00027489 deg
M 15.02495276901736 5.3783e-05 deg
tp 2458414.489871125519
(2018-Oct-22.98987113)
0.00066739 TDB
period 4456.829077885509
12.20
9.7703e-05
2.675e-07
d
yr
n .08077491725816818 1.7708e-09 deg/d
Q 5.545105254300195 8.104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1637  
   data-arc span      21615 days (59.18 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51875  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:39:22  

Additional Information
 Earth MOID = 4.04175 au 
 Jupiter MOID = .122125 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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