Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04660503502395703 3.9657e-08  
a 5.305100798257651 6.8686e-08 au
q 5.057856389749231 2.1145e-07 au
i .9458979085337695 5.2275e-06 deg
node 208.1001149499336 0.00022153 deg
peri 115.0808898816011 0.00022787 deg
M 62.35684953895901 5.1489e-05 deg
tp 2458427.426918576476
(2018-Nov-04.92691858)
0.00064343 TDB
period 4463.123319573573
12.22
8.6677e-05
2.373e-07
d
yr
n .08066100222263095 1.5665e-09 deg/d
Q 5.552345206766072 7.1887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2063  
   data-arc span      22031 days (60.32 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48286  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:42:38  

Additional Information
 Earth MOID = 4.04361 au 
 Jupiter MOID = .115228 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 11.14   n/a E2021B10  
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Feb-25 08:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin