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99950 Euchenor (1973 SC1)
Classification: Jupiter Trojan          SPK-ID: 2099950
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08082696828224518 8.4338e-08  
a 5.134209629878863 1.5461e-07 au
q 4.719227030970246 5.2868e-07 au
i 21.85455879866999 6.7385e-06 deg
node 167.6511083718176 1.402e-05 deg
peri 207.0708298617365 4.1073e-05 deg
M 341.0700332027345 4.4159e-05 deg
tp 2459223.937556730873
(2021-Jan-09.43755673)
0.00052408 TDB
period 4249.216138864751
11.63
0.00019195
5.255e-07
d
yr
n .08472150821120152 3.827e-09 deg/d
Q 5.549192228787479 1.6711e-07 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      16879 days (46.21 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55322  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:34:35  

Additional Information
 Earth MOID = 3.73027 au 
 Jupiter MOID = .0654422 au 
 T_jup = 2.851 
[ 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 12.4   n/a MPO493561  

99950 Euchenor           Discovered 1973 Sept. 19 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
The Greek hero Euchenor, who came from Corinth, was killed in the Trojan War by Paris.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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