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12186 Mitukurigen (1977 ER5)
Classification: Main-belt Asteroid          SPK-ID: 2012186
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05783113630815168 7.3587e-08  
a 2.902758449097317 3.174e-08 AU
q 2.73488862955793 2.1704e-07 AU
i .8091942289321898 6.1309e-06 deg
node 265.9390926661844 0.00051937 deg
peri 141.5449381410762 0.00052411 deg
M 307.803371902468 6.3965e-05 deg
tp 2457062.411592581706
(2015-Feb-08.91159258)
0.00032196 JED
period 1806.403531531424
4.95
2.9628e-05
8.112e-08
d
yr
n .1992910187098676 3.2687e-09 deg/d
Q 3.070628268636702 3.3576e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      921  
   data-arc span      13274 days (36.34 yr)  
   first obs. used      1977-03-12  
   last obs. used      2013-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52822  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Oct-22 20:07:23  

Additional Information
 Earth MOID = 1.74323 AU 
 T_jup = 3.284 
[ 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 13.5 mag n/a MPO266023  

12186 Mitukurigen           Discovered 1977 Mar. 12 by H. Kosai and K. Hurukawa at the Kiso Station of the Tokyo Astronomical Observatory.
Born in Mimasaka, Mitukuri Genpo (1799-1863) was a physician of Western medicine in the late Edo period. In Edo he was appointed an interpreter in the Tokugawa shogunate's Office of Astronomy.
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
 1977 ER5 = 1995 YW 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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