PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-13:43:00
G01     308.0          33.1                5.1 +/-    1.50       8.4 +/-    1.50  0.110 / 0.090
G10     105.1          39.7                6.9 +/-    0.49      10.1 +/-    0.49  0.090 / 0.110
G11     281.5          28.2                5.7 +/-    0.83      10.4 +/-    0.83  0.030 / 0.050
G14     357.0          67.2                5.6 +/-    0.93       6.0 +/-    0.93  0.040 / 0.050
G18     274.4          51.4                8.6 +/-    1.72      10.6 +/-    1.72  0.050 / 0.060
G20     120.0          14.6                5.6 +/-    1.04      14.2 +/-    1.04  0.060 / 0.060
G22     310.3          27.7                4.9 +/-    1.13       9.0 +/-    1.13  0.030 / 0.030
G25     81.1           15.6                6.1 +/-    2.28      15.0 +/-    2.28  0.030 / 0.040
G31     171.7          61.7                8.4 +/-    0.91       9.4 +/-    0.91  0.080 / 0.160
G32     30.1           56.4                6.1 +/-    0.88       7.1 +/-    0.88  0.090 / 0.140