PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-09:57:30
G08     298.2          22.9                4.4 +/-    1.81       9.1 +/-    1.81  0.040 / 0.070
G10     357.8          62.5                5.0 +/-    0.71       5.6 +/-    0.71  0.040 / 0.060
G14     225.0          42.4                5.9 +/-    1.78       8.3 +/-    1.78  0.070 / 0.060
G20     57.7           54.9                5.9 +/-    0.71       7.0 +/-    0.71  0.060 / 0.060
G21     143.2          43.1                7.5 +/-    0.32      10.4 +/-    0.32  0.080 / 0.110
G24     60.0           26.6                4.2 +/-    1.82       7.9 +/-    1.82  0.130 / 0.090
G27     262.8          34.3                6.7 +/-    0.78      10.7 +/-    0.78  0.030 / 0.020
G32     234.3          58.0                5.9 +/-    1.78       6.8 +/-    1.78  0.030 / 0.020