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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172175668911119 1.8106e-08  
a 2.776272864298841 1.1903e-08 au
q 2.2982662268084 5.3348e-08 au
i 10.27822296064229 2.9317e-07 deg
node 89.25212548726904 2.0474e-06 deg
peri 248.8129623224226 5.9464e-06 deg
M 283.2861689470683 7.0065e-06 deg
tp 2459560.550004123276
(2021-Dec-12.05000412)
3.3844e-05 TDB
period 1689.63014498578
4.63
1.0866e-05
2.975e-08
d
yr
n .2130643804316298 1.3702e-09 deg/d
Q 3.254279501789283 1.3952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2547  
   data-arc span      23861 days (65.33 yr)  
   first obs. used      1955-04-14  
   last obs. used      2020-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45607  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:07  

Additional Information
 Earth MOID = 1.31058 au 
 Jupiter MOID = 2.17542 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 12.79   n/a E2021B10  
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

[ show close-approach data ]
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