The eccentricity constant of solar objects

The eccentricity constant X of solar objects can be calculated by the formula
.5*sqrt(4-3(a-b)^2/(a+b)^2) where a = the semi major axis and b = the semi minor axis.
The eccentricity constant X of nine planets is equal to 1.0 as follows:

semi major axis a semi minor axis b
MER …..57,909,175,000 .…56,671,636,475
VEN …108,208,930,000 ...108,206,447,840
EAR …149,597,890,000 ...149,577,002,324
MAR …227,936,640,000 ...226,939,989,085
JUP …778,412,010,000 ...777,500,013,843
SAT 1,426,725,400,000 1,424,632,079,805
URA 2,870,972,200,000 2,867,776,762,478
NEP 4,498,252,900,000 4,498,087,097,722
PLU 5,906,380,000,000 5,720,641,563,568

……….a-b …………..a+b X=
MER …1237538525 .....114,580,811,475 1.0
VEN ……..2482160 .....216,415,377,840 1.0
EAR ……20887676 .....299,174,892,324 1.0
MAR …..996650915 .....454,876,629,085 1.0
JUP …..911996157 ..1,555,912,023,843 1.0
SAT …2093320195 ..2,851,357,479,805 1.0
URA …3195437522 ..5,738,748,962,478 1.0
NEP …..165802278 ..8,996,339,997,722 1.0
PLU 185738436432 11,627,021,563,568 1.0