PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-03:28:10
G08     281.8          22.5                8.8 +/-    0.89      18.3 +/-    0.89  0.120 / 0.140
G10     31.2           62.4                8.1 +/-    0.46       9.0 +/-    0.46  0.080 / 0.140
G14     240.5          53.5                8.7 +/-    0.87      10.5 +/-    0.87  0.050 / 0.070
G18     317.1          18.9                7.2 +/-    0.92      16.3 +/-    0.92  0.040 / 0.080
G20     55.5           61.8               10.3 +/-    0.69      11.5 +/-    0.69  0.060 / 0.140
G21     151.3          30.7                9.8 +/-    1.16      17.0 +/-    1.16  0.060 / 0.140
G24     46.8           19.0                5.7 +/-    0.91      12.9 +/-    0.91  0.020 / 0.030
G27     244.0          25.6               12.4 +/-    1.66      24.0 +/-    1.66  0.020 / 0.040
G31     180.0          17.5               11.6 +/-    4.32      27.1 +/-    4.32  0.060 / 0.160
G32     282.7          76.1                8.7 +/-    0.58       8.9 +/-    0.58  0.080 / 0.140