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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1555565685217744 5.7795e-08  
a 2.630696464249121 1.8424e-08 AU
q 2.221474349448163 1.531e-07 AU
i 12.80167560250229 9.0906e-06 deg
node 253.6312015694281 2.7177e-05 deg
peri 96.50912201432794 4.0995e-05 deg
M 224.9591581035414 3.1464e-05 deg
tp 2457585.111258229142
(2016-Jul-15.61125823)
0.00013904 JED
period 1558.491860735432
4.27
1.6372e-05
4.482e-08
d
yr
n .2309925441831442 2.4266e-09 deg/d
Q 3.039918579050079 2.129e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      7158 days (19.60 yr)  
   first obs. used      1995-11-17  
   last obs. used      2015-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56177  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:26:27  

Additional Information
 Earth MOID = 1.26032 AU 
 T_jup = 3.348 
[ 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 14.1 mag n/a MPO324494  

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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