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JPL Small-Body Database Browser
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13185 Agasthenes (1996 TH52)
Classification: Jupiter Trojan          SPK-ID: 2013185
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 .05462705980455176 5.2882e-08  
a 5.193909234381786 1.1908e-07 au
q 4.910181244015798 3.4946e-07 au
i 9.107165298893056 6.6726e-06 deg
node 4.336755078536921 3.5099e-05 deg
peri 52.83941146555077 8.276e-05 deg
M 304.5826830527311 7.919e-05 deg
tp 2459666.053475031867
(2022-Mar-27.55347503)
0.0009619 TDB
period 4323.544772827195
11.84
0.00014868
4.071e-07
d
yr
n .08326501029029326 2.8634e-09 deg/d
Q 5.477637224747773 1.2558e-07 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      16864 days (46.17 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56472  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:32:17  

Additional Information
 Earth MOID = 3.93074 au 
 Jupiter MOID = .0783973 au 
 T_jup = 2.972 
[ 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 12.0   n/a MPO293526  
diameter diameter 14.567 km 0.774 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
rotation period rot_per 11.453 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Szabo, Gy.M.; Pal, A.; Kiss, Cs.; Kiss, L.L.; et al. (2017) Astron. Astrophys. 599, A44.]
geometric albedo albedo 0.159   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

13185 Agasthenes           Discovered 1996 Oct. 5 by E. W. Elst at the European Southern Observatory.
Agasthenes was the son of legendary king Augeias. During the Third Battle he fell.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1996 TH52 = 1973 SP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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