PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-04:27:50
G01     318.4          20.6                4.3 +/-    1.71       9.3 +/-    1.71  0.160 / 0.250
G08     258.6          12.6                5.9 +/-    2.23      15.5 +/-    2.23  0.160 / 0.290
G10     83.3           50.7                3.9 +/-    0.83       4.9 +/-    0.83  0.040 / 0.040
G11     301.7          23.5                4.2 +/-    1.02       8.5 +/-    1.02  0.040 / 0.040
G14     300.4          71.0                3.5 +/-    0.48       3.6 +/-    0.48  0.220 / 0.370
G18     302.5          42.5                3.6 +/-    1.44       5.0 +/-    1.44  0.230 / 0.280
G20     107.0          28.1                4.3 +/-    1.15       7.9 +/-    1.15  0.060 / 0.050
G22     302.0          11.8                3.5 +/-    7.11       9.3 +/-    7.11  0.070 / 0.050
G31     174.1          44.8                5.7 +/-    0.89       7.7 +/-    0.89  0.080 / 0.070
G32     7.2            67.3                3.3 +/-    0.69       3.5 +/-    0.69  0.050 / 0.080