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9685 Korteweg (4247 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2009685
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1325768661608332 7.0154e-08  
a 2.422588687514866 1.4145e-08 AU
q 2.101409471327459 1.7193e-07 AU
i 1.274729254711158 6.154e-06 deg
node 258.6996772511558 0.00031138 deg
peri 303.5822082156423 0.00031228 deg
M 237.4037772402186 2.583e-05 deg
tp 2457269.521275141928
(2015-Sep-04.02127514)
0.00010081 JED
period 1377.26640552327
3.77
1.2063e-05
3.303e-08
d
yr
n .2613873383945817 2.2893e-09 deg/d
Q 2.743767903702272 1.6021e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      994  
   data-arc span      19484 days (53.34 yr)  
   first obs. used      1960-09-24  
   last obs. used      2014-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57444  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:11:52  

Additional Information
 Earth MOID = 1.09882 AU 
 T_jup = 3.500 
[ 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 14.3 mag n/a MPO267746  

9685 Korteweg           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Diederik Johannes Korteweg (1848-1941), professor of mathematics at the University of Amsterdam, is known in particular for the Korteweg-de Vries equation on solitary waves and for editing the complete works of Christiaan Huygens. The name was suggested by W. A. Fröger.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 4247 P-L = 1989 GC2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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