PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-17:42:30
G02     255.2          77.3                7.8 +/-    1.13       7.9 +/-    1.13  0.060 / 0.230
G05     170.1          20.5                9.2 +/-    1.75      20.1 +/-    1.75  0.090 / 0.190
G06     40.4           51.0                6.8 +/-    0.35       8.4 +/-    0.35  0.110 / 0.230
G12     322.2          62.0                6.0 +/-    0.66       6.7 +/-    0.66  0.120 / 0.190
G17     75.7           18.3                7.4 +/-    0.97      16.9 +/-    0.97  0.030 / 0.040
G19     59.8           38.2                7.6 +/-    0.97      11.4 +/-    0.97  0.030 / 0.040
G24     238.1          31.4               12.0 +/-    1.18      20.3 +/-    1.18  0.050 / 0.070
G25     317.4          17.5                7.9 +/-    1.86      18.5 +/-    1.86  0.050 / 0.070