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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03161488813011361 6.1601e-08  
a 5.214317608987048 1.1433e-07 au
q 5.049467541104041 3.6956e-07 au
i 8.03638705698881 5.7008e-06 deg
node 275.6094987129911 4.5544e-05 deg
peri 308.5305563394256 0.00012139 deg
M 312.1511985944409 0.00011485 deg
tp 2459178.547078842363
(2020-Nov-25.04707884)
0.0013856 TDB
period 4349.052479276389
11.91
0.00014304
3.916e-07
d
yr
n .08277665117067019 2.7225e-09 deg/d
Q 5.379167676870055 1.1795e-07 au
  Orbit Determination Parameters
   # obs. used (total)      734  
   data-arc span      15160 days (41.51 yr)  
   first obs. used      1977-10-07  
   last obs. used      2019-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5479  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:06:23  

Additional Information
 Earth MOID = 4.04616 au 
 Jupiter MOID = .105304 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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