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9708 Gouka (4140 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2009708
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714831681149347 6.264e-08  
a 2.60587163345178 2.3225e-08 AU
q 2.159008510046629 1.5566e-07 AU
i 5.890219991033296 6.5806e-06 deg
node 116.0534112408515 7.5289e-05 deg
peri 36.24502334626734 7.9582e-05 deg
M 184.7440040988253 2.6252e-05 deg
tp 2457748.494386640441
(2016-Dec-25.99438664)
0.00011642 JED
period 1536.48368950756
4.21
2.0541e-05
5.624e-08
d
yr
n .2343012180724022 3.1324e-09 deg/d
Q 3.052734756856931 2.7208e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      13436 days (36.79 yr)  
   first obs. used      1977-10-11  
   last obs. used      2014-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59898  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:15:15  

Additional Information
 Earth MOID = 1.17383 AU 
 T_jup = 3.384 
[ 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 14.5 mag n/a MPO266010  

9708 Gouka           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
On 1901 Sept. 1 Adriaan Jacobus Gouka (1879-1963) and Christiaan A. C. Nell founded NVWS, the Dutch Astronomical and Meteorological Society. The name was suggested by H. van Woerden.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 4140 T-3 = 1990 VF11 = 1990 WX8 = 1996 JH15 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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