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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05769184724352328 6.8226e-08  
a 2.902202490761402 2.4762e-08 AU
q 2.734769067994622 2.0632e-07 AU
i .8092462803289195 5.2219e-06 deg
node 265.9310537986714 0.00048617 deg
peri 141.6700117818773 0.00048984 deg
M 347.5522665699139 5.2814e-05 deg
tp 2457062.942138914575
(2015-Feb-09.44213891)
0.00026497 JED
period 1805.884592203344
4.94
2.3112e-05
6.328e-08
d
yr
n .1993482870136054 2.5513e-09 deg/d
Q 3.069635913528181 2.619e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      989  
   data-arc span      13747 days (37.64 yr)  
   first obs. used      1977-03-12  
   last obs. used      2014-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .519  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:16:43  

Additional Information
 Earth MOID = 1.74403 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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