PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-08:58:00
G01     125.7          11.3                3.2 +/-    2.02       8.7 +/-    2.02  0.120 / 0.330
G07     58.1           68.5                5.3 +/-    0.69       5.7 +/-    0.69  0.090 / 0.320
G08     52.6           42.6                3.0 +/-    1.51       4.2 +/-    1.51  0.060 / 0.080
G09     177.5          36.2                5.8 +/-    0.76       9.0 +/-    0.76  0.070 / 0.110
G11     119.9          36.1                6.1 +/-    0.68       9.5 +/-    0.68  0.030 / 0.020
G13     320.7          12.7                1.5 +/-    2.89       4.0 +/-    2.89  0.030 / 0.030
G17     200.2          12.1               -1.6 +/-    8.12      -4.3 +/-    8.12  0.110 / 0.080
G18     103.2          16.6                5.3 +/-    2.16      12.7 +/-    2.16  0.100 / 0.120
G28     268.6          47.1                4.6 +/-    3.16       6.0 +/-    3.16  0.150 / 0.400
G30     330.8          59.6                3.4 +/-    0.46       3.9 +/-    0.46  0.070 / 0.300