iglo    69.376109939      -81.810219838    ntol   tenv3 files through 17 jan 2026
 iglo   00JUL29  2000.5749  -0.000415  0.000353  0.002010
 iglo   05JUL13  2005.5305   0.001919  0.000638  0.001482
 iglo   05JUL14  2005.5332   0.002238 -0.000663  0.002070
 iglo   05JUL15  2005.5359   0.001019  0.000221  0.002037
 iglo   10JUL14  2010.5325   0.002533  0.000702 -0.001075
 iglo   10JUL16  2010.5380   0.001394  0.000498 -0.001056