PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-05:43:10
G01     318.0          21.3                2.1 +/-    2.29       4.6 +/-    2.29  0.210 / 0.220
G08     256.9          12.1                6.4 +/-    3.74      17.0 +/-    3.74  0.160 / 0.230
G10     84.7           50.2                3.2 +/-    1.11       4.1 +/-    1.11  0.040 / 0.040
G11     300.4          24.1                1.8 +/-    1.22       3.5 +/-    1.22  0.030 / 0.040
G14     305.0          71.3                3.6 +/-    0.66       3.8 +/-    0.66  0.230 / 0.250
G18     301.3          43.4                2.8 +/-    3.21       3.9 +/-    3.21  0.280 / 0.250
G20     107.9          27.2                5.4 +/-    1.05      10.0 +/-    1.05  0.050 / 0.050
G22     302.7          13.2                5.1 +/-    1.57      13.2 +/-    1.57  0.040 / 0.040
G31     174.1          45.8                5.4 +/-    0.70       7.1 +/-    0.70  0.230 / 0.350
G32     7.7            67.0                3.4 +/-    0.71       3.7 +/-    0.71  0.240 / 0.320