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 ]  
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09191312156027028 6.3841e-08  
a 2.258622255581502 1.4415e-08 AU
q 2.051025233645507 1.4014e-07 AU
i 4.65439127953094 6.65e-06 deg
node 329.1186008417919 6.04e-05 deg
peri 171.5247675923521 6.8762e-05 deg
M 215.2820637708321 3.3752e-05 deg
tp 2457498.906493003603
(2016-Apr-20.40649300)
0.00011861 JED
period 1239.834827364915
3.39
1.1869e-05
3.25e-08
d
yr
n .290361257850069 2.7797e-09 deg/d
Q 2.466219277517496 1.574e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      13983 days (38.28 yr)  
   first obs. used      1976-05-21  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51574  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:23:19  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-17 21:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin