PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-21:27:40
G08     318.7          13.2                7.6 +/-    1.68      19.8 +/-    1.68  0.070 / 0.100
G10     308.5          55.2                7.1 +/-    0.94       8.4 +/-    0.94  0.060 / 0.080
G14     212.3          17.7               10.4 +/-    1.87      24.1 +/-    1.87  0.140 / 0.370
G15     45.9           26.4                7.7 +/-    1.79      14.5 +/-    1.79  0.140 / 0.520
G20     9.1            64.5                8.3 +/-    0.65       9.1 +/-    0.65  0.030 / 0.040
G21     114.9          68.9               10.8 +/-    0.87      11.5 +/-    0.87  0.030 / 0.040
G24     86.7           28.1                8.1 +/-    0.80      14.7 +/-    0.80  0.080 / 0.140
G27     293.6          36.0                9.2 +/-    1.83      14.4 +/-    1.83  0.070 / 0.150
G32     213.7          39.9               11.9 +/-    1.24      17.4 +/-    1.24  0.100 / 0.280