PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-17:12:40
G02     227.3          67.3               12.6 +/-    0.98      13.5 +/-    0.98  0.070 / 0.110
G06     43.6           62.7               11.3 +/-    0.47      12.6 +/-    0.47  0.050 / 0.100
G12     322.4          50.0               10.0 +/-    0.77      12.7 +/-    0.77  0.040 / 0.040
G17     66.2           25.2               10.3 +/-    1.40      20.0 +/-    1.40  0.030 / 0.040
G19     47.1           45.5               10.5 +/-    1.04      14.0 +/-    1.04  0.030 / 0.030
G24     250.5          38.2               13.7 +/-    1.79      20.6 +/-    1.79  0.030 / 0.030