PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-07:27:40
G05     51.5           10.4                3.0 +/-    1.34       8.2 +/-    1.34  0.110 / 0.220
G10     240.3          16.7                6.2 +/-    1.39      14.7 +/-    1.39  0.100 / 0.310
G13     68.4           35.8                6.5 +/-    0.81      10.2 +/-    0.81  0.040 / 0.050
G15     111.5          55.5                9.2 +/-    0.39      11.0 +/-    0.39  0.040 / 0.040
G16     308.7          14.1                3.3 +/-    1.41       8.4 +/-    1.41  0.100 / 0.290
G20     342.6          75.5                5.9 +/-    0.96       6.0 +/-    0.96  0.110 / 0.330
G21     319.7          51.6                5.8 +/-    0.92       7.1 +/-    0.92  0.050 / 0.060
G26     280.1          19.8                4.7 +/-    1.41      10.5 +/-    1.41  0.040 / 0.050
G29     159.6          64.9                7.8 +/-    0.71       8.5 +/-    0.71  0.110 / 0.190