PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-15:43:10
G01     39.0           12.3                9.6 +/-    1.86      25.6 +/-    1.86  0.130 / 0.290
G06     173.8          44.6               14.8 +/-    0.62      20.1 +/-    0.62  0.100 / 0.290
G13     235.5          18.9               13.7 +/-    4.15      31.1 +/-    4.15  0.080 / 0.150
G15     269.0          10.6                9.0 +/-    2.03      24.9 +/-    2.03  0.070 / 0.140
G17     15.8           64.6               11.5 +/-    0.86      12.6 +/-    0.86  0.170 / 0.200
G19     300.4          72.1               12.3 +/-    0.96      12.9 +/-    0.96  0.130 / 0.240
G24     315.6          21.8                8.6 +/-    2.13      18.2 +/-    2.13  0.460 / 0.400
G28     78.4           44.1               12.4 +/-    2.12      16.9 +/-    2.12  0.450 / 0.350
G30     156.2          24.5               10.5 +/-    1.83      20.7 +/-    1.83  0.030 / 0.030