PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-13:28:10
G01     89.8           31.9                6.5 +/-    0.49      11.0 +/-    0.49  0.020 / 0.030
G07     125.8          45.1                7.8 +/-    1.01      10.5 +/-    1.01  0.020 / 0.030
G11     67.2           39.0                5.9 +/-    0.66       8.7 +/-    0.66  0.120 / 0.130
G13     293.9          36.3                7.1 +/-    1.31      10.9 +/-    1.31  0.120 / 0.120
G17     214.5          54.9                9.0 +/-    0.83      10.7 +/-    0.83  0.040 / 0.090
G18     62.9           23.5                6.4 +/-    0.73      12.9 +/-    0.73  0.050 / 0.100
G19     215.0          24.3                9.4 +/-    2.00      18.6 +/-    2.00  0.050 / 0.050
G28     349.3          61.7                4.8 +/-    0.62       5.4 +/-    0.62  0.050 / 0.060
G30     102.3          77.2                7.5 +/-    0.48       7.6 +/-    0.48  0.090 / 0.110