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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2066254368508975 1.319e-07  
a 2.591915573966557 3.0942e-08 AU
q 2.056359886215072 3.5486e-07 AU
i 11.86876628479865 9.9462e-06 deg
node 333.2911466982902 3.1204e-05 deg
peri 212.0477405442558 4.0216e-05 deg
M 312.5057001922573 4.0851e-05 deg
tp 2457001.579914709764
(2014-Dec-10.07991471)
0.00017613 JED
period 1524.156995440412
4.17
2.7293e-05
7.472e-08
d
yr
n .2361961406055657 4.2295e-09 deg/d
Q 3.127471261718041 3.7335e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      14938 days (40.90 yr)  
   first obs. used      1973-04-05  
   last obs. used      2014-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50179  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:27:15  

Additional Information
 Earth MOID = 1.07006 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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