PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-16:28:00
G02     335.4          78.2                7.4 +/-    0.45       7.6 +/-    0.45  0.190 / 0.190
G05     164.6          34.1                8.1 +/-    0.89      13.1 +/-    0.89  0.090 / 0.180
G06     41.7           38.0                6.2 +/-    1.19       9.4 +/-    1.19  0.170 / 0.280
G12     309.8          72.3                7.9 +/-    0.83       8.2 +/-    0.83  0.220 / 0.250
G17     85.4           13.2                6.9 +/-    3.19      17.9 +/-    3.19  0.120 / 0.120
G19     76.7           24.6                8.2 +/-    1.11      16.1 +/-    1.11  0.060 / 0.130
G24     228.2          21.8               10.9 +/-    1.86      22.9 +/-    1.86  0.040 / 0.030
G25     316.8          29.1                7.4 +/-    1.19      13.1 +/-    1.19  0.030 / 0.030