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5986 Xenophon (1969 TA)
Classification: Main-belt Asteroid          SPK-ID: 2005986
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .120648489123045 3.9761e-08  
a 2.371206398397113 9.1026e-09 au
q 2.085123929031604 9.5517e-08 au
i 7.458484066468637 4.5007e-06 deg
node 233.7101612472174 3.1834e-05 deg
peri 95.02886353880889 3.8121e-05 deg
M 342.5904960844581 2.4102e-05 deg
tp 2459064.996531456179
8.9464e-05 TDB
period 1333.682535519954
n .2699293050723268 1.5543e-09 deg/d
Q 2.657288867762623 1.0201e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2041  
   data-arc span      23531 days (64.42 yr)  
   first obs. used      1955-11-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:28:29  

Additional Information
 Earth MOID = 1.09027 au 
 Jupiter MOID = 2.65339 au 
 T_jup = 3.523 
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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 12.9   n/a MPO296184  
diameter diameter 8.208 km 0.588 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.921 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Galad, A.; Kornos, L.; Vilagi, J. (2010) Minor Planet Bull. 37, 9-15.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.199   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

5986 Xenophon           Discovered 1969 Oct. 2 by P. Wild at Zimmerwald.
Named for the Athenian nobleman, pupil and interpreter of Socrates, historian, agriculturist, and military officer who lived from about 440 to 354 B.C. Because of his support of Spartan culture and politics he was exiled from Athens. He participated in a military expedition against the Persian king Artaxerxes and, after his defeat near Babylon in 401 B.C., he prevailed to lead the army of 10~000 Greek mercenaries safely home through the mountains of Asia Minor, a great feat described in his famous book Anabasis.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1969 TA = 1980 RW7 = 1980 TA7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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