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6997 Laomedon (3104 T-3)
Classification: Jupiter Trojan          SPK-ID: 2006997
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1020535517947761 2.5254e-08  
a 5.175141658358771 6.8454e-08 au
q 4.647000071082151 1.6921e-07 au
i 19.12004886445082 1.3233e-06 deg
node 195.3050960714423 5.8681e-06 deg
peri 58.28800316403152 1.2402e-05 deg
M 354.8529378090544 1.3207e-05 deg
tp 2459261.980686060814
(2021-Feb-16.48068606)
0.00015771 TDB
period 4300.132028874265
11.77
8.532e-05
2.336e-07
d
yr
n .08371835971144465 1.6611e-09 deg/d
Q 5.703283245635391 7.544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1942  
   data-arc span      24611 days (67.38 yr)  
   first obs. used      1953-10-31  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44364  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:10:36  

Additional Information
 Earth MOID = 3.67837 au 
 Jupiter MOID = .472315 au 
 T_jup = 2.880 
[ 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 10.6   n/a MPO473863  
diameter diameter 37.549 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.087   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

6997 Laomedon           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named for Laomedon, king of Troy and father of Priam and Tithonus.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

Alternate Designations
 3104 T-3 = 1989 SS4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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