PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/21-00:12:50
G01     307.0          34.7                9.0 +/-    1.42      14.4 +/-    1.42  0.080 / 0.090
G10     105.5          38.6                9.3 +/-    0.86      13.9 +/-    0.86  0.070 / 0.080
G11     284.3          26.7                9.2 +/-    1.81      17.3 +/-    1.81  0.060 / 0.050
G14     347.8          68.2                7.3 +/-    0.93       7.8 +/-    0.93  0.050 / 0.050
G18     277.7          50.2                8.4 +/-    1.47      10.5 +/-    1.47  0.060 / 0.070
G20     120.5          13.5                8.2 +/-    1.76      21.1 +/-    1.76  0.050 / 0.070
G22     309.5          23.6                8.0 +/-    0.74      16.1 +/-    0.74  0.090 / 0.200
G25     84.1           16.0                8.7 +/-    1.28      21.1 +/-    1.28  0.120 / 0.210
G31     163.9          64.9                9.4 +/-    0.38      10.3 +/-    0.38  0.150 / 0.140
G32     35.7           52.7                7.5 +/-    1.11       9.2 +/-    1.11  0.110 / 0.180