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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05491256881230806 5.2571e-08  
a 5.194735290467961 1.0035e-07 au
q 4.909479031368414 3.3809e-07 au
i 9.106616490962333 6.526e-06 deg
node 4.336854718830169 2.7914e-05 deg
peri 52.89766695469756 6.3998e-05 deg
M 321.2040531303105 5.839e-05 deg
tp 2459666.544530004575
(2022-Mar-28.04453000)
0.00070388 TDB
period 4324.57625960734
11.84
0.00012532
3.431e-07
d
yr
n .08324515013470639 2.4123e-09 deg/d
Q 5.479991549567508 1.0587e-07 au
  Orbit Determination Parameters
   # obs. used (total)      906  
   data-arc span      17313 days (47.40 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53462  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:48:30  

Additional Information
 Earth MOID = 3.92927 au 
 Jupiter MOID = .0795153 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 12.04   n/a E2021B10  
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. 2020-October); 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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