Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
31037 Mydon (1996 HZ25)
Classification: Jupiter Trojan          SPK-ID: 2031037
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1303730638130167 7.0209e-08  
a 5.246453127626955 8.9708e-08 au
q 4.562456959226845 3.9102e-07 au
i 7.277017082915145 6.5154e-06 deg
node 188.7846926926859 3.9938e-05 deg
peri 28.33354346443405 4.4592e-05 deg
M 11.03672683455667 2.19e-05 deg
tp 2458865.934132490743
(2020-Jan-17.43413249)
0.00026628 TDB
period 4389.318774444261
12.02
0.00011258
3.082e-07
d
yr
n .0820172829770333 2.1036e-09 deg/d
Q 5.930449296027065 1.014e-07 au
  Orbit Determination Parameters
   # obs. used (total)      790  
   data-arc span      12204 days (33.41 yr)  
   first obs. used      1986-08-26  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50693  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 02:14:09  

Additional Information
 Earth MOID = 3.55792 au 
 Jupiter MOID = .622756 au 
 T_jup = 2.967 
[ 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 12.1   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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-28 13:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin