PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-13:57:40
G03     316.2          32.8                4.7 +/-    1.93       7.8 +/-    1.93  0.060 / 0.060
G10     129.7          17.3                8.9 +/-    1.09      21.0 +/-    1.09  0.050 / 0.060
G11     253.0          20.4                6.7 +/-    3.48      14.6 +/-    3.48  0.110 / 0.130
G14     39.7           52.4                7.5 +/-    1.78       9.2 +/-    1.78  0.240 / 0.190
G18     235.7          39.4                9.0 +/-    1.15      13.1 +/-    1.15  0.210 / 0.400
G22     314.3          55.8                5.9 +/-    0.84       7.0 +/-    0.84  0.220 / 0.330
G25     53.2           17.3                6.9 +/-    3.39      16.3 +/-    3.39  0.080 / 0.040
G31     53.9           72.2                6.8 +/-    0.45       7.1 +/-    0.45  0.050 / 0.050
G32     64.9           31.4                5.9 +/-    1.43      10.0 +/-    1.43  0.110 / 0.120