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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09191311147706953 6.4215e-08  
a 2.258622260446056 1.4794e-08 AU
q 2.051025260837087 1.4137e-07 AU
i 4.654390989681511 6.729e-06 deg
node 329.1185918251443 6.5925e-05 deg
peri 171.5247546408629 7.5304e-05 deg
M 215.2820810294905 3.5772e-05 deg
tp 2457498.906435175212
(2016-Apr-20.40643518)
0.00012508 JED
period 1239.834831370395
3.39
1.2181e-05
3.335e-08
d
yr
n .2903612569120116 2.8527e-09 deg/d
Q 2.466219260055025 1.6153e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      13947 days (38.18 yr)  
   first obs. used      1976-05-21  
   last obs. used      2014-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51412  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:44:58  

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-Aug-27 23:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin