PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-17:43:10
G02     239.7          73.5                9.1 +/-    1.13       9.4 +/-    1.13  0.090 / 0.260
G05     172.0          16.0               10.2 +/-    2.21      24.7 +/-    2.21  0.080 / 0.250
G06     40.9           56.1                9.3 +/-    0.32      10.9 +/-    0.32  0.030 / 0.060
G12     322.8          56.5                7.2 +/-    1.56       8.4 +/-    1.56  0.030 / 0.040
G17     71.5           21.4                8.2 +/-    0.85      17.5 +/-    0.85  0.150 / 0.340
G19     54.5           41.3                9.0 +/-    0.66      12.9 +/-    0.66  0.110 / 0.290
G24     243.2          34.6               13.3 +/-    1.14      21.3 +/-    1.14  0.070 / 0.130
G25     316.7          13.0               10.6 +/-    0.96      27.7 +/-    0.96  0.070 / 0.120