PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-22:57:50
G08     289.2          23.4               14.7 +/-    1.03      29.8 +/-    1.03  0.040 / 0.040
G10     11.2           63.2               12.0 +/-    0.35      13.2 +/-    0.35  0.040 / 0.030
G14     232.9          50.2               18.0 +/-    1.18      22.7 +/-    1.18  0.060 / 0.110
G18     67.1           49.6               13.3 +/-    1.23      16.9 +/-    1.23  0.050 / 0.110
G21     147.0          35.5               14.7 +/-    0.93      23.1 +/-    0.93  0.040 / 0.120
G24     54.9           25.5               12.7 +/-    0.63      24.4 +/-    0.63  0.050 / 0.110
G27     249.9          30.0               15.3 +/-    1.50      26.8 +/-    1.50  0.100 / 0.120
G32     248.8          66.4               13.0 +/-    0.82      14.1 +/-    0.82  0.100 / 0.120