PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-04:12:50
G08     284.8          23.3                7.1 +/-    1.19      14.5 +/-    1.19  0.020 / 0.020
G10     19.2           63.3                7.1 +/-    0.92       7.8 +/-    0.92  0.020 / 0.020
G14     237.1          53.9                9.2 +/-    1.98      11.1 +/-    1.98  0.090 / 0.190
G18     69.6           49.2               -0.2 +/-   30.16      -0.2 +/-   30.16  0.090 / 0.210
G21     148.9          34.1                7.4 +/-    1.10      12.0 +/-    1.10  0.040 / 0.030
G24     51.7           23.6                5.9 +/-    2.17      11.9 +/-    2.17  0.040 / 0.030
G27     246.2          27.8                7.9 +/-    1.16      14.6 +/-    1.16  0.050 / 0.100
G31     182.3          12.1                6.2 +/-    9.29      16.4 +/-    9.29  0.070 / 0.110
G32     261.1          71.7                6.4 +/-    0.68       6.7 +/-    0.68  0.060 / 0.080