PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-08:27:50
G08     273.9          20.7                5.2 +/-    0.92      11.2 +/-    0.92  0.030 / 0.030
G10     50.1           59.8                4.0 +/-    0.54       4.5 +/-    0.54  0.040 / 0.040
G14     253.4          62.7                4.7 +/-    0.63       5.2 +/-    0.63  0.090 / 0.150
G18     314.9          27.9                3.2 +/-    2.91       5.8 +/-    2.91  0.090 / 0.130
G20     88.8           40.8                5.3 +/-    0.44       7.7 +/-    0.44  0.090 / 0.220
G21     153.3          20.7                4.6 +/-    1.25       9.9 +/-    1.25  0.130 / 0.260
G24     42.3           13.8                1.6 +/-    1.84       4.0 +/-    1.84  0.050 / 0.070
G27     238.3          20.9                6.1 +/-    2.58      13.1 +/-    2.58  0.050 / 0.060
G31     179.8          23.3                4.6 +/-    1.33       9.4 +/-    1.33  0.090 / 0.150
G32     294.2          74.5                6.3 +/-    0.69       6.5 +/-    0.69  0.080 / 0.130