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JPL Small-Body Database Browser
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65590 Archeptolemos (1305 T-3)
Classification: Jupiter Trojan          SPK-ID: 2065590
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03131180371076811 6.1e-08  
a 5.211317190784564 1.1146e-07 au
q 5.048141449832166 3.6378e-07 au
i 8.036386699020396 5.4957e-06 deg
node 275.6110060566367 4.5505e-05 deg
peri 309.5749913644748 0.00011569 deg
M 344.2661548258139 0.00010754 deg
tp 2459190.411847990206
(2020-Dec-06.91184799)
0.0012969 TDB
period 4345.29922721265
11.90
0.00013941
3.817e-07
d
yr
n .08284814950038015 2.658e-09 deg/d
Q 5.374492931736961 1.1495e-07 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      15459 days (42.32 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:42:28  

Additional Information
 Earth MOID = 4.04437 au 
 Jupiter MOID = .108929 au 
 T_jup = 2.979 
[ 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 11.9   n/a MPO436239  
diameter diameter 20.267 km 1.201 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.052   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

65590 Archeptolemos           Discovered 1977 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Archeptolemos, the charioteer of Hector, was killed by Teucer with the help of the god Apollo.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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