PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-12:43:00
G01     233.2          23.3                7.5 +/-    3.19      15.2 +/-    3.19  0.080 / 0.150
G03     302.3          63.1                5.0 +/-    0.80       5.6 +/-    0.80  0.070 / 0.130
G14     76.2           33.4                5.5 +/-    0.49       9.0 +/-    0.49  0.050 / 0.100
G16     151.5          37.3                6.6 +/-    0.82      10.0 +/-    0.82  0.050 / 0.080
G18     209.3          13.5                6.4 +/-    4.84      16.5 +/-    4.84  0.060 / 0.110
G22     225.8          75.7                7.5 +/-    0.88       7.8 +/-    0.88  0.060 / 0.110
G23     303.4          35.4                4.8 +/-    1.22       7.5 +/-    1.22  0.050 / 0.060
G26     109.6          51.2                7.8 +/-    0.99       9.7 +/-    0.99  0.040 / 0.050
G31     43.0           37.9                4.2 +/-    0.97       6.3 +/-    0.97  0.160 / 0.250