PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-17:27:30
G02     201.4          15.1               18.6 +/-    3.10      46.2 +/-    3.10  0.120 / 0.220
G06     171.2          52.0               16.4 +/-    0.74      20.2 +/-    0.74  0.370 / 0.230
G13     230.3          14.6               15.4 +/-    3.25      38.7 +/-    3.25  0.160 / 0.620
G17     23.4           59.4               12.4 +/-    1.19      14.1 +/-    1.19  0.320 / 0.480
G19     323.8          71.8               14.3 +/-    0.66      15.0 +/-    0.66  0.110 / 0.210
G24     312.5          26.7               11.7 +/-    2.17      22.0 +/-    2.17  0.110 / 0.130
G28     86.0           40.8               13.5 +/-    1.31      19.3 +/-    1.31  0.090 / 0.160
G30     157.4          18.6               14.9 +/-    1.28      33.8 +/-    1.28  0.370 / 0.210