PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-13:42:50
G01     49.2           24.6                5.3 +/-    1.76      10.5 +/-    1.76  0.040 / 0.060
G06     176.8          25.1                5.3 +/-    2.12      10.4 +/-    2.12  0.040 / 0.050
G07     145.5          9.9                 7.2 +/-    1.88      20.1 +/-    1.88  0.160 / 0.390
G11     44.6           16.0                3.5 +/-    3.30       8.5 +/-    3.30  0.270 / 0.430
G13     249.2          31.2                4.1 +/-    1.90       7.0 +/-    1.90  0.020 / 0.030
G15     284.0          15.5                3.5 +/-    1.01       8.5 +/-    1.01  0.030 / 0.020
G17     291.9          77.6                4.0 +/-    0.49       4.1 +/-    0.49  0.050 / 0.050
G19     246.4          61.5                4.4 +/-    0.75       4.9 +/-    0.75  0.050 / 0.050
G28     42.9           56.8                5.2 +/-    0.91       6.1 +/-    0.91  0.130 / 0.120
G30     149.7          41.4                5.6 +/-    1.20       8.0 +/-    1.20  0.120 / 0.130