PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-10:58:10
G08     280.7          22.7                5.3 +/-    1.66      10.9 +/-    1.66  0.070 / 0.140
G10     34.0           61.9                4.3 +/-    1.13       4.8 +/-    1.13  0.070 / 0.150
G14     241.8          57.0                7.9 +/-    2.68       9.2 +/-    2.68  0.020 / 0.030
G18     316.8          21.9                3.2 +/-    1.43       6.7 +/-    1.43  0.030 / 0.020
G20     80.1           45.6                6.3 +/-    1.01       8.4 +/-    1.01  0.070 / 0.060
G21     150.7          26.5                6.2 +/-    2.10      11.7 +/-    2.10  0.070 / 0.060
G24     46.2           18.2                3.3 +/-    2.50       7.6 +/-    2.50  0.040 / 0.030
G27     245.5          25.8                5.7 +/-    2.22      11.0 +/-    2.22  0.030 / 0.030
G31     182.5          14.8                4.7 +/-    1.62      11.8 +/-    1.62  0.090 / 0.140
G32     266.5          71.1                6.1 +/-    1.14       6.5 +/-    1.14  0.090 / 0.120