PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-19:12:30
G02     330.7          79.4                8.6 +/-    0.52       8.7 +/-    0.52  0.060 / 0.080
G05     164.7          33.0               11.5 +/-    2.13      19.0 +/-    2.13  0.050 / 0.090
G06     42.0           38.8                7.7 +/-    1.24      11.4 +/-    1.24  0.140 / 0.220
G12     310.2          74.7                8.8 +/-    0.37       9.1 +/-    0.37  0.170 / 0.150
G17     85.9           11.4                9.1 +/-    1.32      24.7 +/-    1.32  0.030 / 0.030
G19     72.8           30.1                8.9 +/-    1.21      15.5 +/-    1.21  0.020 / 0.020
G24     227.4          22.7               13.4 +/-    1.51      27.6 +/-    1.51  0.100 / 0.130
G25     317.2          28.9                7.7 +/-    1.47      13.7 +/-    1.47  0.130 / 0.110