PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-17:42:40
G02     15.4           66.9                7.9 +/-    0.89       8.5 +/-    0.89  0.030 / 0.030
G05     155.3          49.9                9.7 +/-    0.75      12.2 +/-    0.75  0.030 / 0.020
G06     47.3           24.8                6.4 +/-    2.63      12.6 +/-    2.63  0.200 / 0.300
G12     240.1          79.3                7.8 +/-    0.41       7.9 +/-    0.41  0.310 / 0.390
G19     90.0           15.5                8.6 +/-    1.68      21.2 +/-    1.68  0.140 / 0.210
G24     217.2          11.4                9.3 +/-    1.71      25.3 +/-    1.71  0.120 / 0.260
G25     310.7          42.9                8.0 +/-    0.85      11.2 +/-    0.85  0.130 / 0.160
G29     298.1          19.3                8.1 +/-    2.00      18.1 +/-    2.00  0.100 / 0.210