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24587 Kapaneus (4613 T-2)
Classification: Jupiter Trojan          SPK-ID: 2024587
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .009777914019893629 4.7979e-08  
a 5.181761001400901 9.1214e-08 au
q 5.131094187857565 2.6517e-07 au
i 29.04909774412895 5.7821e-06 deg
node 176.3515455700834 7.7707e-06 deg
peri 344.1482929822525 0.00026504 deg
M 219.8145680134723 0.00026793 deg
tp 2460878.202213650533
(2025-Jul-21.70221365)
0.0032327 TDB
period 4308.384889609895
11.80
0.00011376
3.115e-07
d
yr
n .08355799428880561 2.2063e-09 deg/d
Q 5.232427814944237 9.2106e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1345  
   data-arc span      24039 days (65.82 yr)  
   first obs. used      1955-04-20  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5167  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:45:03  

Additional Information
 Earth MOID = 4.13729 au 
 Jupiter MOID = .268983 au 
 T_jup = 2.749 
[ 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 11.49   n/a E2021B10  
diameter diameter 25.738 km 0.741 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.081   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

24587 Kapaneus           Discovered 1973 Sept. 30 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Kapaneus was the father of the Greek hero Sthenelos.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 4613 T-2 = 1996 RW28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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