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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1323574042703011 6.2723e-08  
a 2.423611186139009 1.3989e-08 AU
q 2.102828300581185 1.5863e-07 AU
i 1.274083116862528 4.8697e-06 deg
node 258.6903280790025 0.00025219 deg
peri 303.4099280569036 0.00025344 deg
M 289.8341744024555 2.2841e-05 deg
tp 2457269.106172371530
(2015-Sep-03.60617237)
8.8187e-05 JED
period 1378.138448885219
3.77
1.1932e-05
3.267e-08
d
yr
n .2612219405758581 2.2616e-09 deg/d
Q 2.744394071696834 1.584e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1252  
   data-arc span      19901 days (54.49 yr)  
   first obs. used      1960-09-24  
   last obs. used      2015-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50077  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:35:46  

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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