PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-21:57:50
G01     318.3          20.1                9.1 +/-    4.48      19.9 +/-    4.48  0.240 / 0.440
G08     253.3          11.9               10.0 +/-    2.78      26.9 +/-    2.78  0.180 / 0.350
G10     83.9           51.2                8.9 +/-    0.79      11.1 +/-    0.79  0.170 / 0.310
G11     299.7          24.9               10.2 +/-    1.71      19.9 +/-    1.71  0.150 / 0.250
G14     305.2          71.2                9.9 +/-    0.64      10.4 +/-    0.64  0.040 / 0.050
G18     300.7          43.8               10.0 +/-    0.54      13.6 +/-    0.54  0.040 / 0.050
G20     107.5          27.2               10.1 +/-    2.28      18.7 +/-    2.28  0.130 / 0.190
G22     301.9          11.4                6.3 +/-   13.89      17.2 +/-   13.89  0.080 / 0.190
G31     176.4          43.9               13.2 +/-    1.07      18.1 +/-    1.07  0.160 / 0.480
G32     13.0           65.4                7.7 +/-    0.79       8.4 +/-    0.79  0.140 / 0.470