PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-13:43:00
G03     194.7          31.3                8.0 +/-    1.22      13.6 +/-    1.22  0.090 / 0.250
G07     279.2          30.6               10.4 +/-    1.12      17.9 +/-    1.12  0.110 / 0.250
G08     150.6          18.1                9.1 +/-    0.91      21.0 +/-    0.91  0.060 / 0.090
G09     320.2          51.9                9.7 +/-    1.49      12.0 +/-    1.49  0.050 / 0.110
G16     47.4           47.5                7.9 +/-    0.89      10.3 +/-    0.89  0.110 / 0.360
G22     178.5          13.9                8.9 +/-    2.88      22.7 +/-    2.88  0.090 / 0.360
G23     59.0           81.8                8.4 +/-    0.66       8.5 +/-    0.66  0.030 / 0.080
G26     42.9           19.1                7.5 +/-    0.82      16.8 +/-    0.82  0.040 / 0.070
G27     111.8          28.1               10.3 +/-    0.82      18.8 +/-    0.82  0.030 / 0.040