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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1318528759306365 6.2801e-08  
a 2.423019306710103 1.3706e-08 au
q 2.103537242684919 1.5854e-07 au
i 1.273627633613243 4.7505e-06 deg
node 258.6312585455751 0.00025213 deg
peri 303.4876125306393 0.00025338 deg
M 86.5740270353342 2.3004e-05 deg
tp 2457269.201966934145
(2015-Sep-03.70196693)
8.7129e-05 JED
period 1377.633638955366
3.77
1.1689e-05
3.2e-08
d
yr
n .2613176608208996 2.2173e-09 deg/d
Q 2.742501370735287 1.5513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1279  
   data-arc span      19985 days (54.72 yr)  
   first obs. used      1960-09-24  
   last obs. used      2015-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50193  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:02:46  

Additional Information
 Earth MOID = 1.10017 au 
 Jupiter MOID = 2.2206 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 14.4 mag n/a MPO324398  

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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