PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-04:12:50
G01     320.2          13.5                5.7 +/-    3.57      14.7 +/-    3.57  0.030 / 0.020
G08     260.6          15.9               10.2 +/-    1.28      24.7 +/-    1.28  0.020 / 0.020
G10     69.3           57.0                6.4 +/-    0.83       7.5 +/-    0.83  0.030 / 0.030
G11     306.1          22.3                8.3 +/-    1.30      17.2 +/-    1.30  0.030 / 0.030
G14     284.4          70.1                6.2 +/-    0.79       6.5 +/-    0.79  0.160 / 0.450
G18     96.0           34.2                5.9 +/-    1.38       9.5 +/-    1.38  0.110 / 0.560
G21     154.9          10.2                5.6 +/-    4.32      15.7 +/-    4.32  0.160 / 0.320
G27     226.6          11.9                9.2 +/-    0.79      24.7 +/-    0.79  0.130 / 0.260
G31     177.5          35.6                7.9 +/-    1.73      12.5 +/-    1.73  0.190 / 0.420
G32     350.7          71.7                6.2 +/-    0.91       6.5 +/-    0.91  0.180 / 0.420