Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0576654376049255 5.9876e-08  
a 2.902691086807009 2.1163e-08 au
q 2.735306135054366 1.7759e-07 au
i .8090451173225988 4.9427e-06 deg
node 265.9230173404618 0.00042865 deg
peri 142.0208738090821 0.00043239 deg
M 66.97164817789984 5.0216e-05 deg
tp 2457064.462192684446
(2015-Feb-10.96219268)
0.00025239 JED
period 1806.340651976368
4.95
1.9754e-05
5.408e-08
d
yr
n .1992979561225696 2.1795e-09 deg/d
Q 3.070076038559653 2.2383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1253  
   data-arc span      14162 days (38.77 yr)  
   first obs. used      1977-03-12  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49733  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:19:57  

Additional Information
 Earth MOID = 1.74372 au 
 Jupiter MOID = 2.16589 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 13.6 mag n/a MPO332934  
rotation period rot_per 11.1967 h n/a LCDB (Rev. 2015-December); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-11 19:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin