PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-22:13:10
G10     257.8          32.4                8.1 +/-    2.14      13.5 +/-    2.14  0.190 / 0.260
G13     47.0           24.7                8.4 +/-    1.22      16.5 +/-    1.22  0.200 / 0.370
G15     76.6           57.5                8.6 +/-    0.47      10.0 +/-    0.47  0.040 / 0.050
G16     285.9          15.0                6.1 +/-    2.60      15.2 +/-    2.60  0.040 / 0.060
G20     259.1          21.0                4.5 +/-    0.82       9.6 +/-    0.82  0.120 / 0.430
G21     342.7          65.0                4.3 +/-    1.04       4.7 +/-    1.04  0.120 / 0.340
G26     258.9          12.2               10.2 +/-    1.71      27.1 +/-    1.71  0.060 / 0.200
G27     321.9          11.2              -10.5 +/-   30.11     -28.6 +/-   30.11  0.070 / 0.220
G29     167.0          42.3                8.7 +/-    0.95      12.2 +/-    0.95  0.040 / 0.090