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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1318498352983357 6.2794e-08  
a 2.422750201386005 1.3781e-08 au
q 2.103310986364251 1.5858e-07 au
i 1.273740998311471 4.7508e-06 deg
node 258.6339108838486 0.00025211 deg
peri 303.4320514870752 0.00025335 deg
M 34.35456357253275 2.2858e-05 deg
tp 2457269.055227401343
(2015-Sep-03.55522740)
8.7103e-05 JED
period 1377.404141246318
3.77
1.1752e-05
3.218e-08
d
yr
n .2613612005509588 2.2299e-09 deg/d
Q 2.74218941640776 1.5597e-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 = 1.10009 au 
 Jupiter MOID = 2.2205 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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