PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/30-02:57:50
G08     286.7          23.1                9.8 +/-    1.26      19.9 +/-    1.26  0.110 / 0.130
G10     20.7           63.0                7.5 +/-    0.77       8.3 +/-    0.77  0.100 / 0.100
G14     235.2          49.6               12.5 +/-    0.66      15.9 +/-    0.66  0.060 / 0.090
G18     317.6          14.7                6.4 +/-    1.33      16.0 +/-    1.33  0.050 / 0.090
G20     38.9           64.9               11.4 +/-    0.83      12.4 +/-    0.83  0.040 / 0.030
G21     149.5          35.5                9.4 +/-    1.61      14.7 +/-    1.61  0.030 / 0.030
G24     50.1           21.7                5.5 +/-    1.21      11.6 +/-    1.21  0.070 / 0.120
G27     248.5          28.5                9.8 +/-    1.28      17.8 +/-    1.28  0.080 / 0.170
G31     181.2          13.1               11.9 +/-    1.72      31.0 +/-    1.72  0.050 / 0.120
G32     264.1          73.9                9.1 +/-    0.49       9.4 +/-    0.49  0.060 / 0.120