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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .10198067272375 5.2663e-08  
a 5.17508575533205 7.149e-08 au
q 4.647327028600191 3.0007e-07 au
i 19.12012729942725 5.9442e-06 deg
node 195.3056975759501 1.2352e-05 deg
peri 58.14350663217061 2.6697e-05 deg
M 338.2246802022726 2.3128e-05 deg
tp 2459260.597869105294
(2021-Feb-15.09786911)
0.00027556 TDB
period 4300.062352594156
11.77
8.9103e-05
2.44e-07
d
yr
n .08371971624616513 1.7348e-09 deg/d
Q 5.702844482063908 7.878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1857  
   data-arc span      24417 days (66.85 yr)  
   first obs. used      1953-10-31  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44528  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:31:26  

Additional Information
 Earth MOID = 3.67993 au 
 Jupiter MOID = .472289 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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