PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/18-03:57:50
G01     318.6          20.1                6.4 +/-    1.43      14.0 +/-    1.43  0.140 / 0.270
G08     259.5          12.9               10.0 +/-    2.37      26.1 +/-    2.37  0.240 / 0.320
G10     82.4           51.0                6.3 +/-    0.86       7.9 +/-    0.86  0.170 / 0.270
G11     302.3          23.1                7.3 +/-    1.11      14.8 +/-    1.11  0.160 / 0.320
G14     298.0          70.8                5.6 +/-    0.53       5.9 +/-    0.53  0.030 / 0.040
G18     303.2          42.1                7.1 +/-    1.05       9.9 +/-    1.05  0.040 / 0.040
G20     106.4          28.6                5.7 +/-    1.22      10.3 +/-    1.22  0.080 / 0.050
G22     301.6          11.1                1.3 +/-    8.86       3.6 +/-    8.86  0.080 / 0.050
G31     174.2          44.2                7.6 +/-    0.57      10.4 +/-    0.57  0.050 / 0.080
G32     6.5            67.6                5.0 +/-    0.80       5.4 +/-    0.80  0.060 / 0.070