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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1323574029475167 6.2778e-08  
a 2.423611185343352 1.4079e-08 AU
q 2.102828303096753 1.5871e-07 AU
i 1.274084391487691 4.9431e-06 deg
node 258.6902994435962 0.00025302 deg
peri 303.4099559360129 0.00025426 deg
M 289.8341756235032 2.294e-05 deg
tp 2457269.106167564888
(2015-Sep-03.60616757)
8.8588e-05 JED
period 1378.138448206567
3.77
1.2009e-05
3.288e-08
d
yr
n .2612219407044946 2.2762e-09 deg/d
Q 2.744394067589951 1.5943e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      19874 days (54.41 yr)  
   first obs. used      1960-09-24  
   last obs. used      2015-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51286  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:19:18  

Additional Information
 Earth MOID = 1.1013 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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