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JPL Small-Body Database Browser
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31037 Mydon (1996 HZ25)
Classification: Jupiter Trojan          SPK-ID: 2031037
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1303730585558946 7.3704e-08  
a 5.246453074614728 9.3308e-08 au
q 4.562456940707229 4.1526e-07 au
i 7.277025194233031 6.5519e-06 deg
node 188.7846825960505 4.0535e-05 deg
peri 28.33357251895133 4.5499e-05 deg
M 11.03670995546354 2.371e-05 deg
tp 2458865.934340329523
(2020-Jan-17.43434033)
0.00028803 TDB
period 4389.318707917156
12.02
0.0001171
3.206e-07
d
yr
n .08201728422013567 2.188e-09 deg/d
Q 5.930449208522228 1.0547e-07 au
  Orbit Determination Parameters
   # obs. used (total)      771  
   data-arc span      11937 days (32.68 yr)  
   first obs. used      1986-08-26  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50811  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:24:06  

Additional Information
 Earth MOID = 3.55792 au 
 Jupiter MOID = .622756 au 
 T_jup = 2.967 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.1   n/a MPO474162  
diameter diameter 19.127 km 0.588 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.077   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

31037 Mydon           Discovered 1996 Apr. 20 by E. W. Elst at the European Southern Observatory.
Mydon, a Paeonian charioteer fighting for the Trojans, was killed by Achilles near the Skamander river.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

Alternate Designations
 1996 HZ25 = 2000 TV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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