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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588078271545446 4.7454e-08  
a 2.395210201964557 1.2831e-08 AU
q 2.014832074212168 1.1561e-07 AU
i 2.587101494259223 6.9567e-06 deg
node 26.49199321139517 0.0001062 deg
peri 90.31212761332273 0.00010883 deg
M 78.09911645822325 2.2197e-05 deg
tp 2456706.763783902405
(2014-Feb-18.26378390)
8.3484e-05 JED
period 1353.985071671063
3.71
1.088e-05
2.979e-08
d
yr
n .2658818088412856 2.1365e-09 deg/d
Q 2.775588329716946 1.4869e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      987  
   data-arc span      23570 days (64.53 yr)  
   first obs. used      1950-12-09  
   last obs. used      2015-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49671  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:55:37  

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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