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                7.8 +/-    1.24       8.8 +/-    1.24  0.150 / 0.490
G07     254.0          12.4                5.3 +/-    2.52      14.1 +/-    2.52  0.120 / 0.590
G09     308.4          24.9                7.0 +/-    0.75      13.8 +/-    0.75  0.040 / 0.050
G14     105.6          12.3                6.7 +/-    1.77      17.9 +/-    1.77  0.040 / 0.050
G16     102.1          63.6                7.8 +/-    0.87       8.6 +/-    0.87  0.030 / 0.060
G22     185.6          42.4                8.2 +/-    2.21      11.4 +/-    2.21  0.030 / 0.060
G23     332.3          60.8                7.0 +/-    1.06       7.9 +/-    1.06  0.140 / 0.260
G26     55.8           44.4                5.8 +/-    0.84       7.9 +/-    0.84  0.040 / 0.050
G31     57.8           11.1                6.5 +/-    2.69      17.8 +/-    2.69  0.110 / 0.310