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20098 Shibatagenji (1994 WC2)
Classification: Main-belt Asteroid          SPK-ID: 2020098
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720519889894696 3.6257e-08  
a 2.776235653423289 1.2184e-08 au
q 2.298578787348332 1.0109e-07 au
i 10.27818374148741 3.244e-06 deg
node 89.25279570985607 2.3601e-05 deg
peri 248.8229630512968 2.6e-05 deg
M 240.6473206262397 1.2684e-05 deg
tp 2459560.660640565334
(2021-Dec-12.16064057)
6.0713e-05 TDB
period 1689.596175482716
4.63
1.1123e-05
3.045e-08
d
yr
n .2130686641126827 1.4027e-09 deg/d
Q 3.253892519498246 1.4281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2440  
   data-arc span      23805 days (65.17 yr)  
   first obs. used      1955-04-14  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4597  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:39:17  

Additional Information
 Earth MOID = 1.31274 au 
 Jupiter MOID = 2.1758 au 
 T_jup = 3.290 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO384927  
diameter diameter 18.003 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20098 Shibatagenji           Discovered 1994 Nov. 24 by K. Endate and K. Watanabe at Kitami.
Genji Shibata (b. 1940) is a medical doctor, who contributed to public welfare by establishing a hospital and a home for elderly people in Yamaguchi, Japan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-01-12Last Updated: 2017-02-16

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