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20070 Koichiyuko (1993 XL)
Classification: Main-belt Asteroid          SPK-ID: 2020070
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2168117307073566 7.0311e-08  
a 2.273368711336317 1.532e-08 AU
q 1.780475706495537 1.6206e-07 AU
i 7.16081499378558 7.138e-06 deg
node 100.794728871259 6.1536e-05 deg
peri 228.5733028988075 6.4248e-05 deg
M 128.8826553861309 2.0146e-05 deg
tp 2456552.275884267934
(2013-Sep-16.77588427)
6.8742e-05 JED
period 1251.996874056553
3.43
1.2656e-05
3.465e-08
d
yr
n .2875406540222231 2.9066e-09 deg/d
Q 2.766261716177096 1.8642e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      7327 days (20.06 yr)  
   first obs. used      1993-12-08  
   last obs. used      2013-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49011  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:36:35  

Additional Information
 Earth MOID = .779052 AU 
 T_jup = 3.569 
[ 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 14.0 mag n/a MPO266061  

20070 Koichiyuko           Discovered 1993 Dec. 8 by T. Kobayashi at Oizumi.
Koichi Takahashi (b. 1958) has been director of the Hiroshima Chapter of the Young Astronauts Club of Japan since 1998. His wife Yuko (b. 1958) enthusiastically helps in his activities. Koichi is a medical doctor and Yuko a pharmacist.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

[ show close-approach data ]
Alternate Designations
 1993 XL = 1998 FK 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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