PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-18:12:30
G02     14.8           67.7                7.7 +/-    0.82       8.3 +/-    0.82  0.040 / 0.050
G05     155.3          50.0               10.3 +/-    0.66      12.9 +/-    0.66  0.040 / 0.060
G06     48.2           23.6                7.2 +/-    0.63      14.5 +/-    0.63  0.290 / 0.600
G12     210.2          78.1                7.3 +/-    1.14       7.4 +/-    1.14  0.190 / 0.440
G19     88.2           20.3                8.8 +/-    1.14      19.3 +/-    1.14  0.030 / 0.030
G24     215.0          10.7                9.9 +/-    2.10      27.3 +/-    2.10  0.020 / 0.030
G25     310.1          44.8                7.2 +/-    2.17       9.7 +/-    2.17  0.050 / 0.090
G29     297.7          17.9                7.2 +/-    0.95      16.6 +/-    0.95  0.060 / 0.090