PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-12:42:30
G03     215.3          60.1                9.5 +/-    1.11      10.8 +/-    1.11  0.120 / 0.270
G07     254.9          13.2                9.1 +/-    3.43      23.5 +/-    3.43  0.110 / 0.290
G09     309.2          26.3                6.8 +/-    1.35      12.8 +/-    1.35  0.160 / 0.260
G14     106.5          11.3                8.2 +/-    2.43      22.4 +/-    2.43  0.090 / 0.230
G16     98.2           63.6                8.9 +/-    0.97       9.9 +/-    0.97  0.050 / 0.070
G22     186.4          42.0                8.2 +/-    0.85      11.6 +/-    0.85  0.060 / 0.080
G23     332.1          60.9                7.0 +/-    0.56       7.9 +/-    0.56  0.030 / 0.040
G26     54.6           43.4                7.4 +/-    0.72      10.2 +/-    0.72  0.030 / 0.050
G31     58.6           10.1                8.9 +/-    4.03      24.6 +/-    4.03  0.040 / 0.030