PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/04-14:27:50
G01     39.8           14.6                5.9 +/-    2.02      14.9 +/-    2.02  0.030 / 0.090
G06     173.5          40.4               10.1 +/-    0.94      14.6 +/-    0.94  0.040 / 0.080
G13     235.5          21.8                8.8 +/-    1.35      18.5 +/-    1.35  0.050 / 0.080
G15     270.1          11.7                7.6 +/-    1.79      20.4 +/-    1.79  0.070 / 0.080
G17     352.7          72.0                8.7 +/-    0.40       9.1 +/-    0.40  0.120 / 0.200
G19     283.0          70.9                8.3 +/-    0.66       8.7 +/-    0.66  0.120 / 0.290
G24     316.2          19.3                6.4 +/-    1.85      14.3 +/-    1.85  0.100 / 0.250
G28     66.2           51.1                7.7 +/-    1.40       9.5 +/-    1.40  0.150 / 0.240
G30     154.8          26.3                9.1 +/-    1.79      17.3 +/-    1.79  0.080 / 0.230