PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-02:58:00
G08     261.8          16.2               12.4 +/-    1.11      30.0 +/-    1.11  0.130 / 0.220
G10     69.6           56.2                9.6 +/-    0.72      11.3 +/-    0.72  0.200 / 0.190
G11     307.7          20.4                8.2 +/-    1.12      17.8 +/-    1.12  0.170 / 0.320
G14     275.7          67.5               11.2 +/-    0.85      12.0 +/-    0.85  0.180 / 0.400
G18     309.6          35.7                9.2 +/-    1.81      14.4 +/-    1.81  0.120 / 0.280
G20     77.0           60.9               13.2 +/-    1.13      14.9 +/-    1.13  0.140 / 0.330
G21     155.7          12.0                9.1 +/-    2.51      24.4 +/-    2.51  0.040 / 0.040
G27     228.6          12.9               11.8 +/-    2.11      30.9 +/-    2.11  0.040 / 0.050
G31     175.6          37.0               11.6 +/-    1.37      17.7 +/-    1.37  0.210 / 0.320
G32     358.9          70.8                9.0 +/-    0.63       9.5 +/-    0.63  0.160 / 0.310