PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-20:27:40
G01     318.3          20.2                9.8 +/-    1.89      21.5 +/-    1.89  0.070 / 0.030
G08     253.1          11.9               10.1 +/-    4.33      27.0 +/-    4.33  0.060 / 0.040
G10     84.0           51.1               10.3 +/-    0.95      12.8 +/-    0.95  0.210 / 0.340
G11     299.6          25.0                9.8 +/-    0.94      19.2 +/-    0.94  0.220 / 0.340
G14     306.2          71.3               10.2 +/-    0.54      10.7 +/-    0.54  0.160 / 0.240
G20     107.6          27.1               10.7 +/-    1.48      19.9 +/-    1.48  0.160 / 0.300
G22     302.0          11.5                4.7 +/-   11.83      12.6 +/-   11.83  0.240 / 0.360
G31     177.4          43.0               11.2 +/-    1.49      15.5 +/-    1.49  0.180 / 0.240
G32     11.9           65.8                9.4 +/-    0.51      10.2 +/-    0.51  0.060 / 0.060