PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-13:57:50
G03     215.5          60.8                9.0 +/-    1.46      10.2 +/-    1.46  0.110 / 0.340
G07     254.0          12.4                7.3 +/-    3.94      19.4 +/-    3.94  0.120 / 0.260
G09     308.4          24.9                6.1 +/-    1.36      12.0 +/-    1.36  0.070 / 0.080
G14     105.6          12.3                6.5 +/-    2.93      17.4 +/-    2.93  0.090 / 0.070
G16     102.1          63.6                7.8 +/-    0.60       8.6 +/-    0.60  0.200 / 0.260
G22     185.6          42.4                8.0 +/-    0.64      11.1 +/-    0.64  0.170 / 0.320
G23     332.3          60.8                6.9 +/-    1.02       7.8 +/-    1.02  0.030 / 0.050
G26     55.8           44.4                7.3 +/-    0.52       9.9 +/-    0.52  0.040 / 0.050
G31     57.8           11.1                6.3 +/-    1.96      17.2 +/-    1.96  0.040 / 0.040