PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-14:43:10
G02     305.4          80.3                7.1 +/-    0.56       7.2 +/-    0.56  0.080 / 0.170
G05     168.0          27.4                8.6 +/-    1.53      16.0 +/-    1.53  0.110 / 0.180
G06     40.4           43.6                6.5 +/-    0.84       9.0 +/-    0.84  0.080 / 0.160
G12     317.3          66.8                4.9 +/-    1.11       5.3 +/-    1.11  0.090 / 0.190
G17     80.7           15.9                7.9 +/-    1.88      19.3 +/-    1.88  0.090 / 0.270
G19     71.1           28.3                6.7 +/-    0.75      12.2 +/-    0.75  0.090 / 0.220
G24     233.5          26.1                9.4 +/-    1.79      17.9 +/-    1.79  0.020 / 0.050
G25     317.4          23.4                3.6 +/-    2.44       7.3 +/-    2.44  0.030 / 0.040