PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-13:27:50
G02     202.5          20.7                8.7 +/-    2.11      18.8 +/-    2.11  0.070 / 0.180
G06     166.7          59.5                7.0 +/-    1.08       7.9 +/-    1.08  0.090 / 0.190
G12     303.0          11.3               -1.3 +/-   14.19      -3.5 +/-   14.19  0.080 / 0.270
G13     223.9          10.3                6.0 +/-    2.96      16.6 +/-    2.96  0.090 / 0.240
G17     28.1           55.4                4.6 +/-    0.34       5.5 +/-    0.34  0.160 / 0.290
G19     320.8          69.6                4.7 +/-    0.33       5.0 +/-    0.33  0.130 / 0.310
G24     305.3          34.4                4.0 +/-    1.24       6.5 +/-    1.24  0.130 / 0.450
G28     92.0           38.0                5.1 +/-    0.66       7.7 +/-    0.66  0.150 / 0.420
G30     158.1          12.1                7.6 +/-    1.58      20.3 +/-    1.58  0.090 / 0.100