PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-18:27:50
G08     308.5          20.1                9.1 +/-    2.19      19.9 +/-    2.19  0.070 / 0.080
G10     332.0          60.0                5.9 +/-    0.65       6.7 +/-    0.65  0.080 / 0.090
G14     217.6          30.6               10.2 +/-    2.44      17.6 +/-    2.44  0.070 / 0.100
G15     46.8           12.9                6.3 +/-    2.88      16.5 +/-    2.88  0.050 / 0.110
G20     36.9           60.5                8.9 +/-    0.82      10.0 +/-    0.82  0.080 / 0.180
G21     133.9          55.5               10.4 +/-    0.55      12.3 +/-    0.55  0.070 / 0.180
G24     70.3           28.2                7.4 +/-    0.65      13.4 +/-    0.65  0.050 / 0.060
G27     278.0          36.9                9.6 +/-    0.71      14.7 +/-    0.71  0.060 / 0.050
G32     222.6          51.6                9.7 +/-    1.93      12.0 +/-    1.93  0.120 / 0.300