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20120 Ryugatake (1995 WB5)
Classification: Main-belt Asteroid          SPK-ID: 2020120
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1556669537168528 5.696e-08  
a 2.631594813002314 1.8395e-08 au
q 2.221942465045172 1.5119e-07 au
i 12.79995456736172 8.9869e-06 deg
node 253.6248589753526 2.685e-05 deg
peri 96.38734843521746 4.0512e-05 deg
M 3.650391212805458 3.1833e-05 deg
tp 2457584.688835067002
(2016-Jul-15.18883507)
0.0001378 JED
period 1559.290236047
4.27
1.6349e-05
4.476e-08
d
yr
n .2308742732287261 2.4207e-09 deg/d
Q 3.041247160959455 2.1258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      7210 days (19.74 yr)  
   first obs. used      1995-11-17  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55711  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:27:17  

Additional Information
 Earth MOID = 1.2596 au 
 Jupiter MOID = 2.47849 au 
 T_jup = 3.347 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO344461  

20120 Ryugatake           Discovered 1995 Nov. 24 by T. Kobayashi at Oizumi.
Ryugatake is a town in Kumamoto, on the east coast of the beautiful Amakusa-Kamishima Island. It is also the name of the mountain where Myu-i public observatory is located.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1995 WB5 = 1998 KC66 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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