PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-01:28:00
G01     313.4          27.7                6.9 +/-    1.96      12.7 +/-    1.96  0.120 / 0.190
G10     96.9           45.3                8.7 +/-    0.77      11.7 +/-    0.77  0.090 / 0.220
G11     289.9          27.6                6.4 +/-    1.84      11.9 +/-    1.84  0.060 / 0.180
G14     333.2          70.1                7.7 +/-    0.87       8.1 +/-    0.87  0.060 / 0.160
G18     289.0          48.2                8.6 +/-    0.79      11.1 +/-    0.79  0.030 / 0.050
G20     115.0          20.2                7.4 +/-    1.02      16.3 +/-    1.02  0.030 / 0.060
G22     306.5          18.9                6.6 +/-    1.91      15.0 +/-    1.91  0.070 / 0.170
G25     88.2           13.5                5.9 +/-    1.27      15.2 +/-    1.27  0.080 / 0.130
G31     170.9          56.5               10.0 +/-    1.10      11.7 +/-    1.10  0.040 / 0.050
G32     28.3           57.5                7.0 +/-    0.94       8.2 +/-    0.94  0.040 / 0.040