PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-14:57:50
G02     346.5          76.9                5.6 +/-    0.43       5.7 +/-    0.43  0.140 / 0.210
G05     164.7          35.4                8.4 +/-    1.10      13.2 +/-    1.10  0.150 / 0.240
G06     42.3           36.1                5.2 +/-    1.10       8.1 +/-    1.10  0.150 / 0.160
G12     304.9          75.0                5.0 +/-    0.62       5.2 +/-    0.62  0.110 / 0.170
G17     87.3           11.2                6.3 +/-    1.24      17.0 +/-    1.24  0.080 / 0.110
G19     78.5           23.3                7.2 +/-    1.88      14.6 +/-    1.88  0.100 / 0.130
G24     227.1          20.6                7.5 +/-    1.92      16.3 +/-    1.92  0.040 / 0.040
G25     316.4          30.8                6.9 +/-    1.25      11.8 +/-    1.25  0.040 / 0.030