PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-03:57:40
G01     313.8          27.1                3.8 +/-    1.26       7.1 +/-    1.26  0.110 / 0.210
G10     95.9           46.0                6.3 +/-    1.01       8.4 +/-    1.01  0.120 / 0.230
G11     291.0          27.4                5.3 +/-    2.07       9.8 +/-    2.07  0.040 / 0.050
G14     328.7          70.2                5.4 +/-    0.75       5.7 +/-    0.75  0.050 / 0.070
G18     291.0          47.3                6.3 +/-    1.18       8.2 +/-    1.18  0.040 / 0.050
G20     105.9          46.4                9.0 +/-    0.95      11.9 +/-    0.95  0.040 / 0.050
G22     306.2          18.6                7.6 +/-    1.56      17.4 +/-    1.56  0.070 / 0.140
G25     90.2           13.3                5.3 +/-    0.99      13.8 +/-    0.99  0.080 / 0.150
G31     169.2          56.8                8.5 +/-    1.98      10.0 +/-    1.98  0.080 / 0.180
G32     28.3           57.5                5.6 +/-    0.94       6.5 +/-    0.94  0.070 / 0.190