PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/01-05:28:10
G05     51.4           10.6                3.0 +/-    3.55       8.3 +/-    3.55  0.080 / 0.350
G10     240.2          16.7                4.4 +/-    0.61      10.6 +/-    0.61  0.070 / 0.360
G13     68.4           35.7                5.3 +/-    0.98       8.4 +/-    0.98  0.480 / 0.370
G15     112.9          55.5                5.9 +/-    0.62       6.9 +/-    0.62  0.140 / 0.260
G16     308.3          14.4                2.0 +/-    2.26       5.2 +/-    2.26  0.040 / 0.040
G20     281.7          69.3                4.2 +/-    0.46       4.4 +/-    0.46  0.030 / 0.030
G21     318.9          50.9                2.9 +/-    0.47       3.6 +/-    0.47  0.070 / 0.070
G26     279.8          19.9                2.1 +/-    1.75       4.6 +/-    1.75  0.040 / 0.050
G29     160.0          65.7                5.0 +/-    0.37       5.5 +/-    0.37  0.050 / 0.010