PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-08:28:00
G01     317.6          21.2                6.1 +/-    1.76      13.0 +/-    1.76  0.050 / 0.050
G08     255.9          11.1                7.1 +/-   13.69      19.3 +/-   13.69  0.040 / 0.060
G10     86.0           50.9                5.8 +/-    0.72       7.3 +/-    0.72  0.290 / 0.230
G11     300.0          24.3                5.5 +/-    1.32      11.0 +/-    1.32  0.180 / 0.240
G14     298.0          69.1                5.4 +/-    0.96       5.7 +/-    0.96  0.300 / 0.280
G18     301.0          42.5               10.4 +/-    2.62      14.6 +/-    2.62  0.230 / 0.320
G20     112.1          14.0                4.8 +/-    1.93      12.2 +/-    1.93  0.160 / 0.260
G22     303.7          16.6                4.2 +/-    4.73      10.2 +/-    4.73  0.170 / 0.290
G31     172.6          48.6                7.1 +/-    1.17       9.1 +/-    1.17  0.070 / 0.150
G32     18.4           63.1                5.4 +/-    0.76       6.0 +/-    0.76  0.080 / 0.170