PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-10:12:40
G08     287.2          23.4                5.9 +/-    0.85      11.9 +/-    0.85  0.060 / 0.100
G10     21.0           62.7                5.8 +/-    0.97       6.5 +/-    0.97  0.050 / 0.110
G14     234.5          51.9                8.2 +/-    2.43      10.2 +/-    2.43  0.050 / 0.020
G18     317.5          16.4                3.8 +/-    1.43       9.2 +/-    1.43  0.040 / 0.030
G20     72.6           49.1                6.1 +/-    1.04       7.8 +/-    1.04  0.030 / 0.020
G21     148.5          32.8                7.3 +/-    1.28      12.2 +/-    1.28  0.030 / 0.020
G24     50.6           21.9                4.4 +/-    3.23       9.2 +/-    3.23  0.130 / 0.080
G27     251.2          29.3                6.0 +/-    1.97      10.7 +/-    1.97  0.090 / 0.080
G32     251.2          66.7                7.4 +/-    0.56       8.0 +/-    0.56  0.100 / 0.100