PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-03:27:50
G01     318.1          21.2                6.5 +/-    1.70      13.9 +/-    1.70  0.150 / 0.280
G08     258.8          12.3               11.5 +/-    1.58      30.4 +/-    1.58  0.180 / 0.350
G10     84.2           50.3                7.3 +/-    0.99       9.1 +/-    0.99  0.280 / 0.320
G11     301.3          23.5                7.2 +/-    0.78      14.6 +/-    0.78  0.130 / 0.210
G14     301.4          70.9                5.6 +/-    0.50       5.9 +/-    0.50  0.070 / 0.050
G18     302.0          42.9                6.4 +/-    2.73       9.0 +/-    2.73  0.060 / 0.050
G20     107.5          27.8                6.7 +/-    1.71      12.3 +/-    1.71  0.050 / 0.070
G22     302.2          11.7                4.8 +/-    8.88      12.8 +/-    8.88  0.090 / 0.080
G31     173.7          45.7                9.0 +/-    1.08      12.0 +/-    1.08  0.030 / 0.020
G32     9.5            66.6                4.6 +/-    1.22       4.9 +/-    1.22  0.030 / 0.030