PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/30-02:58:00
G01     318.4          19.0                8.3 +/-    1.28      18.8 +/-    1.28  0.020 / 0.020
G08     254.7          12.5               10.5 +/-    1.38      27.8 +/-    1.38  0.030 / 0.030
G10     80.6           53.5                9.2 +/-    0.83      11.1 +/-    0.83  0.200 / 0.190
G11     300.5          25.3                7.1 +/-    0.94      13.7 +/-    0.94  0.230 / 0.240
G14     305.9          71.6                7.1 +/-    0.67       7.5 +/-    0.67  0.050 / 0.060
G18     102.4          29.1                7.2 +/-    1.77      12.9 +/-    1.77  0.040 / 0.050
G22     300.9          11.3                2.8 +/-    8.66       7.7 +/-    8.66  0.050 / 0.060
G31     176.9          42.2                9.7 +/-    0.64      13.6 +/-    0.64  0.080 / 0.050
G32     4.6            67.8                7.0 +/-    0.55       7.5 +/-    0.55  0.150 / 0.240