PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-12:27:50
G01     320.9          12.5               -8.0 +/-   29.49     -21.1 +/-   29.49  0.130 / 0.220
G08     262.5          16.7                6.1 +/-    2.09      14.6 +/-    2.09  0.160 / 0.290
G10     69.0           55.9                5.0 +/-    0.78       5.9 +/-    0.78  0.040 / 0.030
G11     308.1          20.2                3.0 +/-    1.15       6.6 +/-    1.15  0.030 / 0.020
G14     277.6          69.2                5.9 +/-    0.50       6.2 +/-    0.50  0.020 / 0.020
G18     308.8          37.8                4.4 +/-    1.29       6.6 +/-    1.29  0.030 / 0.020
G20     99.3           33.7                4.6 +/-    1.12       7.5 +/-    1.12  0.040 / 0.040
G27     230.9          14.1                4.5 +/-    2.37      11.5 +/-    2.37  0.040 / 0.050
G31     179.3          32.3                6.2 +/-    1.44      10.3 +/-    1.44  0.160 / 0.310
G32     336.0          73.3                5.8 +/-    0.29       6.1 +/-    0.29  0.120 / 0.320