PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-04:58:00
G03     191.1          20.5                7.9 +/-    0.48      17.1 +/-    0.48  0.210 / 0.350
G07     293.1          40.3                4.6 +/-    0.94       6.7 +/-    0.94  0.210 / 0.350
G08     142.2          28.4                7.4 +/-    0.75      13.3 +/-    0.75  0.040 / 0.070
G09     320.9          66.2                3.4 +/-    1.11       3.7 +/-    1.11  0.050 / 0.060
G16     42.8           35.4                4.1 +/-    0.64       6.4 +/-    0.64  0.040 / 0.070
G23     121.7          76.7                5.3 +/-    0.56       5.4 +/-    0.56  0.040 / 0.060
G27     98.0           34.0                6.4 +/-    1.46      10.4 +/-    1.46  0.030 / 0.030
G30     274.5          12.2                7.8 +/-    1.61      20.7 +/-    1.61  0.030 / 0.040