PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-00:42:30
G08     293.2          23.7                7.1 +/-    2.06      14.4 +/-    2.06  0.070 / 0.130
G10     4.3            62.9                7.1 +/-    0.43       7.9 +/-    0.43  0.060 / 0.120
G14     228.3          44.2                9.3 +/-    1.46      12.7 +/-    1.46  0.040 / 0.090
G20     338.4          62.4                8.1 +/-    0.60       9.0 +/-    0.60  0.040 / 0.090
G21     145.9          43.2                9.0 +/-    0.96      12.5 +/-    0.96  0.070 / 0.110
G24     56.1           25.1                7.4 +/-    1.11      14.4 +/-    1.11  0.070 / 0.100
G27     256.5          32.5                8.1 +/-    1.39      13.4 +/-    1.39  0.080 / 0.170
G32     244.3          68.4                8.3 +/-    0.67       8.9 +/-    0.67  0.100 / 0.240