PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-10:42:40
G01     123.6          14.3                5.7 +/-    1.82      14.3 +/-    1.82  0.100 / 0.390
G07     70.0           67.0                7.1 +/-    0.48       7.7 +/-    0.48  0.080 / 0.320
G08     47.1           34.5                5.0 +/-    1.60       8.0 +/-    1.60  0.030 / 0.030
G09     175.9          29.8                7.6 +/-    1.81      13.4 +/-    1.81  0.030 / 0.030
G11     111.4          36.3                7.4 +/-    1.19      11.5 +/-    1.19  0.040 / 0.020
G13     320.8          13.0                2.3 +/-    3.11       6.1 +/-    3.11  0.030 / 0.020
G17     199.8          21.2                5.7 +/-    1.70      12.2 +/-    1.70  0.110 / 0.230
G28     283.6          55.1                5.0 +/-    2.18       5.9 +/-    2.18  0.090 / 0.220
G30     336.2          62.5                5.6 +/-    0.69       6.3 +/-    0.69  0.060 / 0.070