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27714 Dochu (1989 BR)
Classification: Main-belt Asteroid          SPK-ID: 2027714
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09191312350638703 6.3811e-08  
a 2.258622253697944 1.4334e-08 AU
q 2.05102522753953 1.4002e-07 AU
i 4.65439121013473 6.6452e-06 deg
node 329.1185929559958 5.895e-05 deg
peri 171.5247831738666 6.7156e-05 deg
M 215.2820577600523 3.3396e-05 deg
tp 2457498.906513081180
(2016-Apr-20.40651308)
0.00011748 JED
period 1239.834825813992
3.39
1.1802e-05
3.231e-08
d
yr
n .2903612582132852 2.764e-09 deg/d
Q 2.466219279856357 1.5651e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      991  
   data-arc span      14041 days (38.44 yr)  
   first obs. used      1976-05-21  
   last obs. used      2014-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51497  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:51:46  

Additional Information
 Earth MOID = 1.0644 AU 
 T_jup = 3.612 
[ 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 14.3 mag n/a MPO266096  

27714 Dochu           Discovered 1989 Jan. 29 by M. Iwamoto and T. Furuta at Tokushima.
Dochu in Awa is the soil column which was formed when a steep cliff eroded due to the wind and rain. This is a globally rare natural feature, unique in Japan, and was designated as a national monument of Japan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

Alternate Designations
 1989 BR = 1991 XS4 = 1998 XJ47 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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