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                6.4 +/-    1.39      14.1 +/-    1.39  0.140 / 0.160
G10     332.0          60.0                6.8 +/-    0.43       7.7 +/-    0.43  0.100 / 0.160
G14     217.6          30.6                9.7 +/-    2.25      16.8 +/-    2.25  0.130 / 0.280
G15     46.8           12.9                6.3 +/-    1.97      16.6 +/-    1.97  0.110 / 0.290
G20     36.9           60.5                7.5 +/-    0.82       8.5 +/-    0.82  0.070 / 0.090
G21     133.9          55.5               10.9 +/-    0.38      12.9 +/-    0.38  0.060 / 0.090
G24     70.3           28.2                6.0 +/-    1.62      11.0 +/-    1.62  0.040 / 0.040
G27     278.0          36.9                8.4 +/-    0.76      12.8 +/-    0.76  0.040 / 0.040
G32     222.6          51.6               10.2 +/-    1.95      12.6 +/-    1.95  0.030 / 0.020