PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-15:57:40
G02     216.7          57.0                7.5 +/-    1.16       8.8 +/-    1.16  0.100 / 0.290
G06     55.4           72.0                8.7 +/-    1.88       9.1 +/-    1.88  0.130 / 0.320
G12     320.1          40.9                8.9 +/-    1.35      12.8 +/-    1.35  0.070 / 0.080
G17     58.4           30.8                7.8 +/-    0.56      13.5 +/-    0.56  0.080 / 0.090
G19     34.8           52.0                8.6 +/-    0.49      10.6 +/-    0.49  0.040 / 0.070
G24     262.9          42.0                7.5 +/-    2.03      10.5 +/-    2.03  0.040 / 0.070
G28     122.5          13.9                8.7 +/-    1.78      22.1 +/-    1.78  0.030 / 0.040