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9123 Yoshiko (1998 FQ11)
Classification: Main-belt Asteroid          SPK-ID: 2009123
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2062089456484703 8.0088e-08  
a 2.591570825757679 1.8029e-08 au
q 2.057165738204852 2.0207e-07 au
i 11.87024144420138 8.3494e-06 deg
node 333.2877448682664 3.1022e-05 deg
peri 212.159244463645 3.5058e-05 deg
M 141.4157795799849 2.1013e-05 deg
tp 2457001.897644391912
(2014-Dec-10.39764439)
8.5002e-05 JED
period 1523.852915558313
4.17
1.5902e-05
4.354e-08
d
yr
n .2362432727755107 2.4653e-09 deg/d
Q 3.125975913310505 2.1747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      15474 days (42.37 yr)  
   first obs. used      1973-04-05  
   last obs. used      2015-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50055  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:26:53  

Additional Information
 Earth MOID = 1.0698 au 
 Jupiter MOID = 1.89564 au 
 T_jup = 3.359 
[ 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 13.5 mag n/a MPO279612  

9123 Yoshiko           Discovered 1998 Mar. 24 by T. Kagawa at the Gekko Observatory.
Yoshiko Nakano (b. 1933), a director of the Gekko Observatory, received the Medal with a Blue Ribbon in 1997 from the Japanese Government for her contribution to astronomical activities and education.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070926/MPCPages.arcLast Updated: 2007-09-30

[ show close-approach data ]
Alternate Designations
 1998 FQ11 = 1952 DB1 = 1973 GD1 = 1977 CU2 = 1977 EC = 1981 AA4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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