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JPL Small-Body Database Browser
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134329 Cycnos (2377 T-3)
Classification: Jupiter Trojan          SPK-ID: 2134329
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08099192314444119 7.4512e-08  
a 5.172088594903779 1.7075e-07 au
q 4.753191192929092 5.0246e-07 au
i 17.38921593034652 9.7579e-06 deg
node 17.58994710124277 2.0273e-05 deg
peri 278.5827270566129 6.8369e-05 deg
M 301.7820159630721 6.8286e-05 deg
tp 2459695.287540973342
(2022-Apr-25.78754097)
0.00081951 TDB
period 4296.327309989789
11.76
0.00021276
5.825e-07
d
yr
n .08379249857498768 4.1495e-09 deg/d
Q 5.590985996878467 1.8458e-07 au
  Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      15544 days (42.56 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:18:34  

Additional Information
 Earth MOID = 3.79425 au 
 Jupiter MOID = .0888756 au 
 T_jup = 2.903 
[ 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 12.5   n/a MPO401177  
diameter diameter 17.695 km 0.745 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.074   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

134329 Cycnos           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Cycnos, an ally of Priam, was a son of Poseidon by a nymph. His body was firm as iron; he was invulnerable. Achilles tried three times to kill him with his spear, but without success. He then strangled him after Cycnos stumbled over a stone.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

Alternate Designations
 2377 T-3 = 2001 QO179 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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