PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-06:57:40
G01     103.5          27.3                8.4 +/-    0.70      15.6 +/-    0.70  0.040 / 0.060
G07     112.2          54.6                7.2 +/-    0.74       8.6 +/-    0.74  0.040 / 0.060
G08     41.7           16.6                2.9 +/-    0.88       7.0 +/-    0.88  0.040 / 0.040
G09     174.1          10.6                5.3 +/-    2.09      14.6 +/-    2.09  0.040 / 0.040
G11     84.1           41.9                7.0 +/-    0.86       9.9 +/-    0.86  0.150 / 0.220
G13     308.0          29.4                5.0 +/-    2.72       8.8 +/-    2.72  0.120 / 0.330
G17     207.0          43.0                9.1 +/-    0.46      12.6 +/-    0.46  0.050 / 0.070
G19     209.9          17.4                4.8 +/-    2.15      11.2 +/-    2.15  0.040 / 0.050
G28     326.3          61.5                4.0 +/-    1.02       4.5 +/-    1.02  0.130 / 0.350
G30     44.0           79.1                5.0 +/-    0.93       5.1 +/-    0.93  0.150 / 0.290