PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-18:28:10
G02     207.2          43.3               12.6 +/-    0.78      17.5 +/-    0.78  0.070 / 0.140
G06     123.8          77.9               10.8 +/-    0.68      11.0 +/-    0.68  0.080 / 0.130
G12     313.4          25.7               12.7 +/-    2.69      24.4 +/-    2.69  0.070 / 0.180
G17     44.4           42.6                9.9 +/-    0.57      13.8 +/-    0.57  0.070 / 0.190
G19     14.1           60.8               10.8 +/-    0.45      12.2 +/-    0.45  0.070 / 0.090
G24     284.8          42.2               11.1 +/-    0.99      15.6 +/-    0.99  0.060 / 0.080
G28     111.2          24.6               10.6 +/-    0.80      20.9 +/-    0.80  0.050 / 0.080