PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-18:43:10
G02     14.3           68.1                8.8 +/-    0.41       9.4 +/-    0.41  0.030 / 0.040
G05     155.7          49.3               13.7 +/-    0.94      17.4 +/-    0.94  0.030 / 0.050
G06     47.8           24.4                8.6 +/-    3.15      17.2 +/-    3.15  0.110 / 0.160
G12     215.1          78.9               10.4 +/-    0.26      10.5 +/-    0.26  0.250 / 0.280
G19     87.6           20.6               10.7 +/-    1.73      23.1 +/-    1.73  0.060 / 0.070
G24     215.6          11.3               17.3 +/-    2.43      46.8 +/-    2.43  0.070 / 0.060
G25     310.7          44.0               10.0 +/-    0.88      13.6 +/-    0.88  0.030 / 0.030
G29     297.1          17.4               11.7 +/-    1.40      27.5 +/-    1.40  0.020 / 0.030