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11552 Boucolion (1993 BD4)
Classification: Jupiter Trojan          SPK-ID: 2011552
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1535051235243296 6.9838e-08  
a 5.261012200794929 1.387e-07 AU
q 4.453419873048898 3.3729e-07 AU
i 14.68524839238743 6.7313e-06 deg
node 138.3618489683499 3.0992e-05 deg
peri 182.8909705232836 4.042e-05 deg
M 121.5640644339431 2.7181e-05 deg
tp 2455512.149897774753
(2010-Nov-11.64989777)
0.00032612 JED
period 4407.602191453883
12.07
0.0001743
4.772e-07
d
yr
n .08167706257566114 3.23e-09 deg/d
Q 6.06860452854096 1.5999e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1993-01-27  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52328  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:12:10  

Additional Information
 Earth MOID = 3.44161 AU 
 T_jup = 2.911 
[ 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 10.0 mag n/a MPO247469  
rotation period rot_per 32.44 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D.; Coley, D.R.; French, L.M. (2015) Minor Planet Bul. 42, 216-224.]

11552 Boucolion           Discovered 1993 Jan. 27 by E. W. Elst at Caussols.
Boucolion was the father of Pedasos and Aesopos. Both sons died near the Scamander river.
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
 1993 BD4 = 1975 NP1 = 1994 CE20 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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