PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-07:42:50
G01     127.4          9.8               -16.6 +/-   22.49     -46.5 +/-   22.49  0.030 / 0.030
G07     49.6           69.2                5.3 +/-    1.17       5.6 +/-    1.17  0.030 / 0.030
G08     54.1           43.6                4.8 +/-    1.00       6.6 +/-    1.00  0.060 / 0.260
G09     177.3          38.3                6.3 +/-    0.94       9.5 +/-    0.94  0.190 / 0.250
G11     122.9          34.6                6.9 +/-    0.78      11.1 +/-    0.78  0.050 / 0.080
G13     321.2          10.7               -7.0 +/-    7.95     -19.4 +/-    7.95  0.050 / 0.070
G18     105.4          15.4                4.8 +/-    2.17      11.8 +/-    2.17  0.100 / 0.360
G27     37.5           9.6                 0.3 +/-    2.76       1.0 +/-    2.76  0.110 / 0.350
G28     265.2          45.4                6.1 +/-    2.66       8.2 +/-    2.66  0.030 / 0.040
G30     327.5          57.1                4.3 +/-    0.88       5.0 +/-    0.88  0.030 / 0.030