PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-23:57:40
G01     308.0          33.9                6.8 +/-    1.41      11.0 +/-    1.41  0.090 / 0.080
G10     104.2          39.5                8.8 +/-    0.93      12.9 +/-    0.93  0.080 / 0.090
G11     285.8          26.6                9.5 +/-    1.22      17.9 +/-    1.22  0.030 / 0.050
G14     344.3          68.7                7.2 +/-    0.41       7.7 +/-    0.41  0.040 / 0.050
G18     279.8          50.0                9.0 +/-    1.15      11.3 +/-    1.15  0.040 / 0.070
G20     119.7          14.3                9.0 +/-    2.20      22.8 +/-    2.20  0.060 / 0.080
G22     309.1          22.6                7.7 +/-    1.46      15.8 +/-    1.46  0.080 / 0.030
G25     85.3           15.6                7.3 +/-    1.99      18.0 +/-    1.99  0.070 / 0.040
G31     165.2          63.5                9.1 +/-    0.67      10.1 +/-    0.67  0.100 / 0.150
G32     34.4           53.6                7.2 +/-    1.39       8.7 +/-    1.39  0.080 / 0.180