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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714831666827215 6.2411e-08  
a 2.605871634290216 2.301e-08 AU
q 2.159008514473451 1.5477e-07 AU
i 5.890220152730315 6.4315e-06 deg
node 116.0534078990673 6.6468e-05 deg
peri 36.24502329711309 7.0123e-05 deg
M 184.7440066623315 2.4292e-05 deg
tp 2457748.494376060370
(2016-Dec-25.99437606)
0.00010891 JED
period 1536.483690249103
4.21
2.0351e-05
5.572e-08
d
yr
n .234301217959323 3.1033e-09 deg/d
Q 3.052734754106981 2.6956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      13467 days (36.87 yr)  
   first obs. used      1977-10-11  
   last obs. used      2014-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59325  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:55:31  

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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