PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-11:58:00
G08     273.9          21.2                6.7 +/-    3.09      14.4 +/-    3.09  0.110 / 0.260
G10     47.1           60.4                5.5 +/-    1.09       6.3 +/-    1.09  0.160 / 0.250
G14     251.5          62.0                6.1 +/-    0.56       6.8 +/-    0.56  0.020 / 0.020
G18     315.0          27.8                2.3 +/-    1.53       4.2 +/-    1.53  0.050 / 0.020
G20     87.4           41.6                4.5 +/-    0.66       6.4 +/-    0.66  0.050 / 0.040
G21     152.4          19.8                5.1 +/-    2.53      11.2 +/-    2.53  0.060 / 0.060
G24     42.4           13.8                2.8 +/-    3.45       7.1 +/-    3.45  0.030 / 0.030
G27     240.1          21.8                6.6 +/-    1.20      13.8 +/-    1.20  0.040 / 0.030
G31     181.4          20.5                4.9 +/-    1.65      10.7 +/-    1.65  0.180 / 0.120
G32     289.6          74.3                5.0 +/-    0.37       5.2 +/-    0.37  0.070 / 0.140