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JPL Small-Body Database Browser
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37519 Amphios (3040 T-3)
Classification: Jupiter Trojan          SPK-ID: 2037519
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006327101145960293 5.7891e-08  
a 5.209135228869227 1.0825e-07 au
q 5.176176503393187 3.6076e-07 au
i 25.45157419762734 7.9923e-06 deg
node 30.36451429203907 1.1914e-05 deg
peri 290.2315095968925 0.00072886 deg
M 276.3869039165043 0.00073304 deg
tp 2460009.099338414476
(2023-Mar-05.59933841)
0.0088489 TDB
period 4342.570468466152
11.89
0.00013536
3.706e-07
d
yr
n .08290020913055125 2.584e-09 deg/d
Q 5.242093954345267 1.0893e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1228  
   data-arc span      15456 days (42.32 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5264  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:33:04  

Additional Information
 Earth MOID = 4.19901 au 
 Jupiter MOID = .231628 au 
 T_jup = 2.806 
[ 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 11.1   n/a MPO474231  
diameter diameter 33.076 km 0.621 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 50.93 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D.; Coley, D.R.; French, L.M. (2015) Minor Planet Bull. 42, 216-224.]
geometric albedo albedo 0.077   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

37519 Amphios           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Amphios, one of the allies of Priam, was killed by Ajax. Ajax killed Amphios mainly to get his beautiful armor. But a mountain of spears prevented Ajax from getting the armor.
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
 3040 T-3 = 2000 QK66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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