PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-22:42:40
G08     274.4          19.8                8.8 +/-    1.39      19.5 +/-    1.39  0.140 / 0.230
G10     54.9           58.6               10.1 +/-    0.69      11.6 +/-    0.69  0.180 / 0.270
G14     253.8          60.9               10.6 +/-    0.67      11.9 +/-    0.67  0.040 / 0.060
G18     314.7          28.4                6.6 +/-    1.35      11.9 +/-    1.35  0.040 / 0.050
G20     91.7           38.5                9.7 +/-    1.17      14.5 +/-    1.17  0.080 / 0.150
G21     154.5          20.7               10.2 +/-    2.46      22.0 +/-    2.46  0.150 / 0.120
G24     42.5           14.1                7.0 +/-    3.24      17.8 +/-    3.24  0.040 / 0.030
G27     235.3          19.4               11.7 +/-    4.81      26.0 +/-    4.81  0.030 / 0.020
G31     178.2          26.6               12.3 +/-    2.43      23.2 +/-    2.43  0.170 / 0.420
G32     323.2          76.1                9.6 +/-    0.78       9.9 +/-    0.78  0.280 / 0.240