PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/06-07:12:40
G05     51.7           9.9                 2.5 +/-    4.78       7.0 +/-    4.78  0.040 / 0.050
G10     240.7          17.2                6.9 +/-    1.07      16.2 +/-    1.07  0.040 / 0.050
G13     67.6           35.6                6.3 +/-    1.43       9.8 +/-    1.43  0.070 / 0.310
G15     110.5          55.8                7.7 +/-    0.44       9.1 +/-    0.44  0.060 / 0.320
G16     308.0          14.3                2.4 +/-    3.11       6.2 +/-    3.11  0.070 / 0.040
G20     335.0          75.6                6.4 +/-    0.74       6.5 +/-    0.74  0.060 / 0.040
G21     320.2          51.9                5.7 +/-    0.61       7.0 +/-    0.61  0.220 / 0.330
G26     279.4          19.7                4.9 +/-    1.51      10.8 +/-    1.51  0.130 / 0.320
G29     160.0          64.3                7.0 +/-    0.56       7.6 +/-    0.56  0.080 / 0.080