PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-14:12:30
G03     225.7          65.9                6.8 +/-    0.92       7.4 +/-    0.92  0.110 / 0.320
G09     305.0          20.1                8.5 +/-    1.36      18.6 +/-    1.36  0.100 / 0.290
G14     100.9          16.0                6.6 +/-    1.37      16.1 +/-    1.37  0.040 / 0.070
G16     117.2          61.2                9.7 +/-    0.91      10.9 +/-    0.91  0.040 / 0.060
G22     187.2          48.5                9.5 +/-    1.33      12.3 +/-    1.33  0.030 / 0.050
G23     326.7          56.1                7.1 +/-    0.92       8.3 +/-    0.92  0.040 / 0.050
G26     62.8           48.5                6.8 +/-    0.67       8.8 +/-    0.67  0.040 / 0.050
G31     54.4           15.5                6.7 +/-    0.72      16.4 +/-    0.72  0.040 / 0.060