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12056 Yoshigeru (1997 YS11)
Classification: Main-belt Asteroid          SPK-ID: 2012056
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605901120200468 2.6999e-08  
a 2.283708946457488 6.3788e-09 au
q 1.916967870924697 6.1277e-08 au
i 6.28063456382295 3.0388e-06 deg
node 108.6009420442606 3.3813e-05 deg
peri 171.7840948012261 3.5814e-05 deg
M 54.52100154857275 1.2706e-05 deg
tp 2458809.593427184994
(2019-Nov-22.09342718)
4.4327e-05 TDB
period 1260.548490698103
3.45
5.2814e-06
1.446e-08
d
yr
n .2855899655241576 1.1965e-09 deg/d
Q 2.650450021990279 7.4031e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2037  
   data-arc span      25759 days (70.52 yr)  
   first obs. used      1950-04-20  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:55:29  

Additional Information
 Earth MOID = .900737 au 
 Jupiter MOID = 2.48118 au 
 T_jup = 3.578 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO435814  

12056 Yoshigeru           Discovered 1997 Dec. 30 by T. Kobayashi at Oizumi.
Yoshida Shigeru (1952-1997) was a Japanese physician who specialized in the circulatory system and the use of magnetic resonance imaging for the diagnosis of heart disease. His premature death cut short his plans for a minor-planet survey. The name was suggested by J. Kobayashi and M. Namiki.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1997 YS11 = 1950 HO1 = 1989 VN3 = 1992 PA6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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