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55701 Ukalegon (1193 T-3)
Classification: Jupiter Trojan          SPK-ID: 2055701
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .139922266136626 5.8728e-08  
a 5.159729046761384 1.5908e-07 au
q 4.437768065887558 3.9486e-07 au
i 20.95935626882021 8.6225e-06 deg
node 227.3645530924419 1.3279e-05 deg
peri 106.153667266743 3.7242e-05 deg
M 263.1681837875224 3.9471e-05 deg
tp 2460151.974561556737
(2023-Jul-26.47456156)
0.00050782 TDB
period 4280.936353097231
11.72
0.00019798
5.42e-07
d
yr
n .08409375199879862 3.889e-09 deg/d
Q 5.88169002763521 1.8134e-07 au
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      15601 days (42.71 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:02:35  

Additional Information
 Earth MOID = 3.50538 au 
 Jupiter MOID = .0977125 au 
 T_jup = 2.850 
[ 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 MPO474440  

55701 Ukalegon           Discovered 1977 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Ukalegon was an old hero and a member of the Trojan senate.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1193 T-3 = 2000 RY98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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