PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-17:27:30
G02     250.5          76.3                7.7 +/-    0.42       7.9 +/-    0.42  0.100 / 0.140
G05     170.7          19.3               10.9 +/-    2.47      24.4 +/-    2.47  0.070 / 0.150
G06     40.4           52.1                8.6 +/-    0.48      10.6 +/-    0.48  0.080 / 0.130
G12     322.5          60.9                6.9 +/-    0.65       7.7 +/-    0.65  0.060 / 0.150
G17     74.8           18.9                7.3 +/-    1.61      16.6 +/-    1.61  0.330 / 0.270
G19     58.5           39.0                8.7 +/-    1.14      12.8 +/-    1.14  0.290 / 0.380
G24     239.2          32.2                8.1 +/-    0.68      13.5 +/-    0.68  0.020 / 0.040
G25     317.2          16.4                6.2 +/-    1.94      14.9 +/-    1.94  0.020 / 0.040