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48373 Gorgythion (2161 T-3)
Classification: Jupiter Trojan          SPK-ID: 2048373
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01428292827523144 6.2575e-08  
a 5.27050059406129 1.3921e-07 au
q 5.195222412101748 3.8706e-07 au
i 27.21355910742186 6.2611e-06 deg
node 208.3131871110072 1.2352e-05 deg
peri 35.74697808652881 0.00023336 deg
M 30.23349419139373 0.00022794 deg
tp 2458829.339228268907
(2019-Dec-11.83922827)
0.0028076 TDB
period 4419.531430185444
12.10
0.0001751
4.794e-07
d
yr
n .08145659911844871 3.2273e-09 deg/d
Q 5.345778776020833 1.412e-07 au
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      15655 days (42.86 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:08:11  

Additional Information
 Earth MOID = 4.19851 au 
 Jupiter MOID = .243535 au 
 T_jup = 2.777 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457680.5 (2016-Oct-19.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008108559635402534 6.5511e-08  
q 5.188345000488093 4.0657e-07 au
tp 2458971.250073877664
(2020-May-01.75007388)
0.0046869 TDB
node 208.4063333372766 1.2345e-05 deg
peri 47.4116191620594 0.00039064 deg
i 27.29072909501583 6.2682e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      15655 days (42.86 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:08:11  

Additional Information
 Jupiter MOID = .243535 au 
 T_jup = 2.777 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.291634745812722E-15 -2.523582869529058E-14 4.581803234112077E-11 8.501224219031686E-15 3.940516354384975E-12 -5.470529872204563E-15
q -2.523582869529058E-14 1.653027066045492E-13 -6.081148137180589E-10 -5.415389161244067E-14 -5.169295001681488E-11 1.06202589423098E-14
tp 4.581803234112077E-11 -6.081148137180589E-10 2.196744373903532E-5 4.34691203770138E-10 1.830026875928494E-6 3.689507252156526E-10
node 8.501224219031686E-15 -5.415389161244067E-14 4.34691203770138E-10 1.523874991758124E-10 -9.92043393957298E-11 2.767685496329947E-11
peri 3.940516354384975E-12 -5.169295001681488E-11 1.830026875928494E-6 -9.92043393957298E-11 1.526023183296218E-7 6.105141517844156E-12
i -5.470529872204563E-15 1.06202589423098E-14 3.689507252156526E-10 2.767685496329947E-11 6.105141517844156E-12 3.929012213475053E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.12   n/a E2021B10  
diameter diameter 20.267 km 0.638 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.090   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

48373 Gorgythion           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Gorgythion, a bastard son of Priam, was killed by Teucer, who had tried to kill Hector, but the arrow hit Gorgythion.
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
 2161 T-3 = 2000 SE303 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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