PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/19-02:57:50
G08     307.5          19.9                8.8 +/-    2.22      19.5 +/-    2.22  0.050 / 0.080
G10     336.7          60.7                7.9 +/-    0.58       8.9 +/-    0.58  0.080 / 0.090
G14     219.5          30.7                9.4 +/-    0.93      16.3 +/-    0.93  0.120 / 0.210
G15     47.3           10.7                6.0 +/-    2.04      16.4 +/-    2.04  0.090 / 0.180
G20     5.8            65.2                9.3 +/-    0.83      10.1 +/-    0.83  0.030 / 0.060
G21     136.6          55.8               10.2 +/-    0.92      12.0 +/-    0.92  0.040 / 0.050
G24     70.0           29.2                7.1 +/-    0.71      12.6 +/-    0.71  0.090 / 0.090
G27     271.9          37.0                8.7 +/-    1.49      13.3 +/-    1.49  0.070 / 0.090
G32     225.5          56.5               10.1 +/-    0.89      11.9 +/-    0.89  0.040 / 0.030