PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/18-00:58:00
G01     253.0          36.4                8.9 +/-    1.07      13.7 +/-    1.07  0.040 / 0.040
G03     316.3          40.9                8.4 +/-    2.36      12.0 +/-    2.36  0.040 / 0.050
G11     237.4          12.7                9.5 +/-    1.95      25.0 +/-    1.95  0.060 / 0.090
G14     58.2           42.0                5.5 +/-    0.60       7.7 +/-    0.60  0.050 / 0.110
G18     220.2          28.2                9.1 +/-    2.47      16.5 +/-    2.47  0.050 / 0.080
G22     307.0          63.5                6.7 +/-    0.91       7.4 +/-    0.91  0.050 / 0.090
G23     284.8          17.1                8.2 +/-    1.88      19.3 +/-    1.88  0.160 / 0.620
G26     137.8          36.6                8.6 +/-    0.81      13.2 +/-    0.81  0.180 / 0.610
G31     41.6           60.9                5.6 +/-    0.53       6.3 +/-    0.53  0.100 / 0.250
G32     76.1           23.5                5.2 +/-    1.49      10.4 +/-    1.49  0.080 / 0.220