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129137 Hippolochos (2005 AP27)
Classification: Jupiter Trojan          SPK-ID: 2129137
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05636059681059626 8.8671e-08  
a 5.141510327771219 1.9713e-07 au
q 4.851731737190189 4.705e-07 au
i 12.50549957567675 8.6196e-06 deg
node 114.4968241713521 5.6054e-05 deg
peri 232.1187656457613 0.00013654 deg
M 112.6359827314161 0.00011777 deg
tp 2456268.178159006049
(2012-Dec-06.67815901)
0.0014109 JED
period 4258.282754113563
11.66
0.0002449
6.705e-07
d
yr
n .08454112157118612 4.8622e-09 deg/d
Q 5.43128891835225 2.0824e-07 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      5233 days (14.33 yr)  
   first obs. used      2001-10-15  
   last obs. used      2016-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62921  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 06:51:43  

Additional Information
 Earth MOID = 3.85899 au 
 Jupiter MOID = .070753 au 
 T_jup = 2.950 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO270642  

129137 Hippolochos           Discovered 2005 Jan. 13 by M. Ory at Vicques.
Hippolochos was the son of Antimachos, the Trojan councillor responsible for preventing Helen from being restored to the Greeks. This brave warrior was killed by Agamemnon. Etymologically, hippo-lochos means "an ambush with a horse"---such as the Trojan Horse. The name was suggested by C. Eschenlohr.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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