PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-07:13:00
G07     329.3          57.1                5.6 +/-    0.64       6.5 +/-    0.64  0.060 / 0.100
G08     111.6          50.2                8.2 +/-    0.54      10.3 +/-    0.54  0.100 / 0.070
G09     197.5          78.2                5.0 +/-    0.52       5.1 +/-    0.52  0.030 / 0.040
G11     149.6          10.8                0.8 +/-   13.04       2.2 +/-   13.04  0.050 / 0.040
G23     153.1          44.9                9.7 +/-    0.86      13.0 +/-    0.86  0.030 / 0.020
G27     60.4           34.0                5.1 +/-    1.81       8.3 +/-    1.81  0.040 / 0.020
G28     232.1          19.1                4.3 +/-    1.79       9.7 +/-    1.79  0.090 / 0.340
G30     297.6          31.1                4.9 +/-    1.41       8.4 +/-    1.41  0.180 / 0.280