PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-22:43:10
G08     314.3          16.6                8.9 +/-    2.34      21.3 +/-    2.34  0.070 / 0.070
G10     319.6          57.8                8.4 +/-    1.05       9.7 +/-    1.05  0.080 / 0.090
G14     214.8          23.5               13.5 +/-    0.77      27.3 +/-    0.77  0.040 / 0.050
G15     46.0           21.4                6.6 +/-    0.69      14.1 +/-    0.69  0.030 / 0.050
G20     23.7           62.9                8.8 +/-    0.54       9.7 +/-    0.54  0.070 / 0.120
G21     126.0          63.6               10.5 +/-    0.78      11.6 +/-    0.78  0.080 / 0.130
G24     79.4           29.1                8.7 +/-    0.78      15.6 +/-    0.78  0.110 / 0.340
G27     285.1          37.3               10.9 +/-    0.86      16.6 +/-    0.86  0.120 / 0.370
G32     217.7          46.7               12.4 +/-    0.57      16.3 +/-    0.57  0.030 / 0.040