PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-11:12:50
G08     306.1          20.9                2.9 +/-    2.87       6.2 +/-    2.87  0.040 / 0.030
G10     339.3          61.0                3.0 +/-    0.91       3.4 +/-    0.91  0.030 / 0.030
G14     219.2          34.3                4.9 +/-    1.91       7.9 +/-    1.91  0.050 / 0.140
G20     43.2           59.0                4.7 +/-    0.56       5.4 +/-    0.56  0.060 / 0.140
G21     136.9          50.4                7.2 +/-    0.53       9.0 +/-    0.53  0.070 / 0.080
G24     68.6           28.6                3.2 +/-    0.66       5.8 +/-    0.66  0.060 / 0.080
G27     274.0          36.6                6.4 +/-    1.69       9.9 +/-    1.69  0.120 / 0.220
G32     225.3          50.9                6.3 +/-    1.05       7.9 +/-    1.05  0.120 / 0.240