PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-05:57:40
G10     274.0          41.9                5.5 +/-    1.68       7.8 +/-    1.68  0.110 / 0.120
G13     39.5           13.6                2.2 +/-    1.20       5.6 +/-    1.20  0.070 / 0.160
G15     53.4           43.7                4.5 +/-    1.11       6.2 +/-    1.11  0.100 / 0.320
G20     8.1            65.6                4.2 +/-    0.60       4.6 +/-    0.60  0.100 / 0.250
G21     20.1           75.2                5.1 +/-    1.20       5.3 +/-    1.20  0.070 / 0.090
G24     114.8          17.8                5.2 +/-    1.37      12.2 +/-    1.37  0.080 / 0.080
G27     315.1          23.9                2.2 +/-    1.72       4.4 +/-    1.72  0.040 / 0.040
G29     168.7          25.1                6.5 +/-    0.75      12.6 +/-    0.75  0.050 / 0.050
G32     204.9          16.5                8.6 +/-    2.87      20.6 +/-    2.87  0.080 / 0.260