PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/17-19:43:00
G02     24.9           61.2                5.7 +/-    0.72       6.4 +/-    0.72  0.080 / 0.070
G05     148.2          56.4                7.4 +/-    0.58       8.7 +/-    0.58  0.100 / 0.110
G06     50.1           20.4                5.9 +/-    2.41      12.7 +/-    2.41  0.020 / 0.040
G12     216.3          75.5                6.4 +/-    0.61       6.6 +/-    0.61  0.030 / 0.030
G19     95.0           12.1                6.4 +/-    2.08      17.1 +/-    2.08  0.100 / 0.250
G25     305.5          48.1                5.8 +/-    2.90       7.5 +/-    2.90  0.160 / 0.190
G29     302.8          24.0                6.2 +/-    2.01      12.5 +/-    2.01  0.120 / 0.190