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6468 Welzenbach (1981 ED19)
Classification: Main-belt Asteroid          SPK-ID: 2006468
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07402324148700085 4.9489e-08  
a 2.674066393525088 1.8382e-08 AU
q 2.476123331124907 1.3571e-07 AU
i 2.303833540620937 6.0551e-06 deg
node 167.6956030448937 0.00011863 deg
peri 141.6782280089005 0.00012681 deg
M 128.1308296591174 4.2059e-05 deg
tp 2456432.029616640072
(2013-May-19.52961664)
0.00018795 JED
period 1597.190454116534
4.37
1.6469e-05
4.509e-08
d
yr
n .2253957873791134 2.3241e-09 deg/d
Q 2.872009455925269 1.9743e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1261  
   data-arc span      23316 days (63.84 yr)  
   first obs. used      1950-03-22  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4847  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:23:00  

Additional Information
 Earth MOID = 1.46306 AU 
 T_jup = 3.375 
[ 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 13.0 mag n/a MPO267734  

6468 Welzenbach           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Linda C. Welzenbach (b. 1966) is collections manager in the Division of Meteorites at the Smithsonian Institution. She plays an essential role in the meteoritics community through her daily management of the National Meteorite Collection, providing research material to scientists and classifying Antarctic meteorites.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1981 ED19 = 1987 SH6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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