PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-06:12:40
G08     316.8          14.6                0.2 +/-    2.24       0.5 +/-    2.24  0.050 / 0.070
G10     317.9          57.7               -0.6 +/-    0.93      -0.7 +/-    0.93  0.050 / 0.060
G14     213.5          23.0                5.8 +/-    1.32      12.0 +/-    1.32  0.040 / 0.040
G15     45.7           16.6                1.1 +/-    2.18       2.6 +/-    2.18  0.040 / 0.040
G20     20.1           63.3                0.1 +/-    1.03       0.1 +/-    1.03  0.040 / 0.030
G21     123.5          64.2                2.2 +/-    1.07       2.4 +/-    1.07  0.030 / 0.020
G24     83.7           29.5                3.6 +/-    1.41       6.3 +/-    1.41  0.070 / 0.080
G27     288.1          37.1                1.6 +/-    1.64       2.5 +/-    1.64  0.070 / 0.120
G32     216.7          39.7                4.7 +/-    1.47       6.9 +/-    1.47  0.210 / 0.210