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12973 Melanthios (1973 SY1)
Classification: Jupiter Trojan          SPK-ID: 2012973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05823078275372105 6.2817e-08  
a 5.120345825063639 1.0465e-07 au
q 4.822184079700436 3.8675e-07 au
i 5.744035213103766 6.8661e-06 deg
node 358.1431496419449 4.9126e-05 deg
peri 36.40830693702986 7.3537e-05 deg
M 282.2580134219339 5.7489e-05 deg
tp 2459514.403838051873
(2021-Oct-26.90383805)
0.00068519 TDB
period 4232.016651237714
11.59
0.00012975
3.552e-07
d
yr
n .0850658278706708 2.608e-09 deg/d
Q 5.418507570426842 1.1075e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1013  
   data-arc span      16843 days (46.11 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56379  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:39:36  

Additional Information
 Earth MOID = 3.82974 au 
 Jupiter MOID = .0665278 au 
 T_jup = 2.987 
[ 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 11.4   n/a MPO412277  

12973 Melanthios           Discovered 1973 Sept. 19 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Melanthios was a goat herder of Odysseus. He mocked Odysseus when the latter came to Eumaios disguised as a beggar. Later Odysseus killed him.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1973 SY1 = 1996 SY7 = 1998 VO21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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