PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-08:12:30
G03     204.6          47.1                6.4 +/-    0.76       8.3 +/-    0.76  0.060 / 0.130
G07     266.9          22.8                5.4 +/-    2.04      11.0 +/-    2.04  0.120 / 0.140
G09     316.8          41.0                4.7 +/-    1.57       6.7 +/-    1.57  0.030 / 0.050
G16     63.0           58.3                4.2 +/-    0.60       4.8 +/-    0.60  0.040 / 0.060
G22     185.5          30.0                4.6 +/-    2.55       8.1 +/-    2.55  0.140 / 0.260
G23     343.2          70.4                4.2 +/-    0.99       4.4 +/-    0.99  0.110 / 0.240
G26     45.5           31.2                2.5 +/-    0.88       4.2 +/-    0.88  0.040 / 0.050
G27     125.2          18.7                6.3 +/-    2.23      14.2 +/-    2.23  0.040 / 0.050