PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-01:27:50
G08     268.0          19.5                8.6 +/-    1.69      19.1 +/-    1.69  0.150 / 0.380
G10     56.2           59.3                8.3 +/-    0.79       9.5 +/-    0.79  0.120 / 0.310
G14     260.0          63.9                8.8 +/-    0.77       9.7 +/-    0.77  0.110 / 0.340
G18     313.6          29.7               10.5 +/-    1.39      18.6 +/-    1.39  0.090 / 0.330
G20     35.0           69.5               14.5 +/-    0.44      15.4 +/-    0.44  0.040 / 0.070
G21     154.6          19.2               11.5 +/-    1.71      25.8 +/-    1.71  0.040 / 0.070
G27     234.2          17.9               10.9 +/-    0.96      25.2 +/-    0.96  0.100 / 0.220
G31     177.3          29.2               11.5 +/-    1.16      20.5 +/-    1.16  0.090 / 0.200
G32     336.4          75.1                9.2 +/-    0.91       9.4 +/-    0.91  0.070 / 0.160