PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-22:57:50
G08     312.3          17.9                6.9 +/-    1.43      15.9 +/-    1.43  0.030 / 0.040
G10     324.4          58.7                6.3 +/-    0.43       7.3 +/-    0.43  0.030 / 0.040
G14     216.0          25.9               10.5 +/-    1.83      20.2 +/-    1.83  0.080 / 0.070
G15     46.2           19.3                4.8 +/-    0.49      10.6 +/-    0.49  0.070 / 0.100
G20     29.1           62.0                7.9 +/-    0.47       8.8 +/-    0.47  0.080 / 0.260
G21     129.5          61.3               10.0 +/-    0.79      11.2 +/-    0.79  0.080 / 0.190
G24     76.4           29.2                6.9 +/-    0.66      12.4 +/-    0.66  0.060 / 0.090
G27     281.7          37.4                9.2 +/-    0.91      14.0 +/-    0.91  0.060 / 0.090
G32     219.6          49.3               10.1 +/-    0.75      12.8 +/-    0.75  0.040 / 0.050