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6948 Gounelle (1981 ET22)
Classification: Main-belt Asteroid          SPK-ID: 2006948
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ 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 .1588078342646397 4.772e-08  
a 2.39521020014096 1.29e-08 AU
q 2.014832055648 1.1635e-07 AU
i 2.587100928419555 6.9942e-06 deg
node 26.4919993722524 0.00010645 deg
peri 90.31212633387381 0.00010913 deg
M 78.09911323957638 2.2326e-05 deg
tp 2456706.763796343415
(2014-Feb-18.26379634)
8.3992e-05 JED
period 1353.985070124775
3.71
1.0939e-05
2.995e-08
d
yr
n .2658818091449299 2.148e-09 deg/d
Q 2.77558834463392 1.4949e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      968  
   data-arc span      23190 days (63.49 yr)  
   first obs. used      1950-12-09  
   last obs. used      2014-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49472  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:35:56  

Additional Information
 Earth MOID = 1.03309 AU 
 T_jup = 3.511 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO279588  

6948 Gounelle           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Matthieu Gounelle (b. 1971) is curator of meteorites at Muséum National d´Histoire Naturelle in Paris. His research encompasses both physical and theoretical studies focused on the evolution of the early solar system.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

Alternate Designations
 1981 ET22 = 1990 QL7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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