PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-11:13:10
G08     281.3          22.9                3.5 +/-    1.28       7.1 +/-    1.28  0.070 / 0.130
G10     32.7           62.0                3.9 +/-    1.28       4.4 +/-    1.28  0.080 / 0.170
G14     241.0          56.5                5.1 +/-    2.87       6.0 +/-    2.87  0.030 / 0.030
G18     316.9          21.5                2.0 +/-    1.97       4.2 +/-    1.97  0.040 / 0.030
G20     79.4           45.9                4.8 +/-    1.09       6.4 +/-    1.09  0.020 / 0.030
G21     150.4          26.9                5.5 +/-    2.16      10.3 +/-    2.16  0.020 / 0.020
G24     46.6           18.5                3.4 +/-    2.49       7.7 +/-    2.49  0.110 / 0.110
G27     246.1          26.2                4.5 +/-    2.73       8.6 +/-    2.73  0.090 / 0.140
G31     182.7          14.1                2.8 +/-    1.93       7.1 +/-    1.93  0.090 / 0.080
G32     265.1          70.9                4.0 +/-    0.56       4.2 +/-    0.56  0.060 / 0.070