PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-17:12:30
G02     205.5          37.8               11.2 +/-    0.72      16.9 +/-    0.72  0.120 / 0.090
G06     142.1          74.8                9.1 +/-    0.78       9.4 +/-    0.78  0.100 / 0.070
G12     311.3          22.5                8.6 +/-    2.15      17.9 +/-    2.15  0.170 / 0.300
G17     40.8           45.3                8.0 +/-    1.10      10.8 +/-    1.10  0.160 / 0.280
G19     4.3            63.8                8.6 +/-    0.66       9.4 +/-    0.66  0.030 / 0.020
G24     290.8          41.0                8.4 +/-    8.72      12.0 +/-    8.72  0.030 / 0.020
G28     107.0          28.0                9.4 +/-    1.51      17.2 +/-    1.51  0.030 / 0.030