PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/22-23:43:00
G08     271.5          20.4                6.4 +/-    0.95      13.9 +/-    0.95  0.120 / 0.210
G10     50.6           60.2                7.3 +/-    0.67       8.3 +/-    0.67  0.130 / 0.330
G14     254.4          62.0                6.4 +/-    0.63       7.1 +/-    0.63  0.040 / 0.050
G18     314.6          27.9                4.7 +/-    2.43       8.6 +/-    2.43  0.040 / 0.050
G20     89.5           40.4                7.1 +/-    0.93      10.3 +/-    0.93  0.130 / 0.230
G21     153.6          20.8                9.4 +/-    1.72      20.2 +/-    1.72  0.100 / 0.380
G24     41.0           11.9                6.2 +/-    1.65      16.5 +/-    1.65  0.310 / 0.300
G27     237.3          20.0                8.3 +/-    2.19      18.2 +/-    2.19  0.160 / 0.340
G31     179.2          24.8                8.9 +/-    3.27      17.4 +/-    3.27  0.140 / 0.410
G32     320.7          76.2                6.6 +/-    0.69       6.7 +/-    0.69  0.180 / 0.220