PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-00:42:40
G08     263.2          17.0               13.1 +/-    1.70      31.0 +/-    1.70  0.030 / 0.030
G10     65.0           58.0               11.7 +/-    0.82      13.5 +/-    0.82  0.030 / 0.030
G11     308.7          20.0                9.1 +/-    1.32      19.9 +/-    1.32  0.180 / 0.360
G14     276.6          68.9               11.3 +/-    0.80      12.0 +/-    0.80  0.180 / 0.360
G18     94.4           34.6               11.7 +/-    0.71      18.7 +/-    0.71  0.160 / 0.470
G21     154.2          11.2               12.8 +/-    3.66      34.9 +/-    3.66  0.200 / 0.470
G27     228.4          13.6               13.4 +/-    2.35      34.4 +/-    2.35  0.050 / 0.100
G31     179.8          31.0               13.9 +/-    0.99      23.8 +/-    0.99  0.060 / 0.090
G32     335.8          73.4               11.4 +/-    0.40      11.8 +/-    0.40  0.030 / 0.040