PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-01:58:10
G01     317.1          23.3                6.5 +/-    1.90      13.1 +/-    1.90  0.040 / 0.050
G08     258.0          11.2                9.8 +/-    8.26      26.7 +/-    8.26  0.040 / 0.060
G10     87.5           48.8                8.9 +/-    1.02      11.4 +/-    1.02  0.090 / 0.170
G11     299.5          24.1                7.6 +/-    0.82      15.2 +/-    0.82  0.070 / 0.170
G14     306.9          70.9                7.9 +/-    0.94       8.4 +/-    0.94  0.290 / 0.440
G18     299.5          44.3                7.8 +/-    4.72      10.6 +/-    4.72  0.200 / 0.340
G20     109.6          25.4                7.9 +/-    1.19      15.2 +/-    1.19  0.060 / 0.070
G22     303.2          12.8                7.0 +/-    2.25      18.3 +/-    2.25  0.110 / 0.120
G31     172.9          48.3               10.1 +/-    1.24      13.0 +/-    1.24  0.030 / 0.030
G32     15.0           64.5                6.9 +/-    0.65       7.6 +/-    0.65  0.030 / 0.030