PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-14:12:50
G01     91.9           31.2               10.0 +/-    0.96      17.1 +/-    0.96  0.040 / 0.060
G07     124.2          43.7               11.1 +/-    0.86      15.2 +/-    0.86  0.040 / 0.060
G11     68.8           37.9                8.5 +/-    0.92      12.9 +/-    0.92  0.080 / 0.120
G13     298.5          34.1                8.9 +/-    1.11      14.4 +/-    1.11  0.080 / 0.120
G17     212.8          54.5               10.6 +/-    0.77      12.7 +/-    0.77  0.030 / 0.040
G19     213.6          27.3                8.4 +/-    1.83      15.7 +/-    1.83  0.030 / 0.040
G28     345.9          61.6                7.8 +/-    0.42       8.7 +/-    0.42  0.040 / 0.050
G30     88.2           78.9                9.1 +/-    0.70       9.3 +/-    0.70  0.030 / 0.050