PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-15:42:30
G02     249.6          74.5                9.0 +/-    0.97       9.3 +/-    0.97  0.130 / 0.140
G05     171.8          18.8               12.6 +/-    1.79      28.6 +/-    1.79  0.080 / 0.140
G06     40.1           52.4                8.6 +/-    0.44      10.5 +/-    0.44  0.080 / 0.230
G12     322.0          60.8                9.1 +/-    0.94      10.2 +/-    0.94  0.060 / 0.230
G17     75.4           18.4                8.3 +/-    0.74      19.0 +/-    0.74  0.030 / 0.050
G19     58.4           39.5                8.7 +/-    0.70      12.7 +/-    0.70  0.040 / 0.040
G24     237.7          31.6               11.5 +/-    1.21      19.6 +/-    1.21  0.040 / 0.060
G25     317.3          18.1                7.6 +/-    1.73      17.5 +/-    1.73  0.040 / 0.040