PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-05:57:50
G10     303.4          54.2                7.9 +/-    1.19       9.6 +/-    1.19  0.090 / 0.080
G14     210.6          15.0                8.5 +/-    1.68      21.1 +/-    1.68  0.100 / 0.110
G15     45.6           24.0                6.0 +/-    1.60      12.1 +/-    1.60  0.030 / 0.040
G20     0.4            65.0                6.7 +/-    0.67       7.3 +/-    0.67  0.030 / 0.030
G21     106.6          71.1                9.3 +/-    0.46       9.7 +/-    0.46  0.070 / 0.040
G24     93.6           27.5                6.8 +/-    1.80      12.5 +/-    1.80  0.050 / 0.060
G27     298.5          34.8                9.1 +/-    1.71      14.4 +/-    1.71  0.170 / 0.470
G32     212.3          31.2                9.2 +/-    3.12      15.7 +/-    3.12  0.250 / 0.450