Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
9685 Korteweg (4247 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2009685
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1325768531260739 6.7325e-08  
a 2.422588695350478 1.9597e-08 AU
q 2.101409509702111 1.6542e-07 AU
i 1.274730744657666 6.1003e-06 deg
node 258.6994518603253 0.00029742 deg
peri 303.5824547835652 0.00029839 deg
M 237.4037479721376 2.7974e-05 deg
tp 2457269.521389389499
(2015-Sep-04.02138939)
0.0001104 JED
period 1377.266412205208
3.77
1.6711e-05
4.575e-08
d
yr
n .2613873371264361 3.1716e-09 deg/d
Q 2.743767880998846 2.2195e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      991  
   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      .52871  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:36:41  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-23 06:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin