PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-06:27:50
G03     236.7          68.2                5.1 +/-    0.40       5.4 +/-    0.40  0.050 / 0.060
G09     303.5          18.4                4.4 +/-    2.73      10.2 +/-    2.73  0.040 / 0.060
G14     99.4           15.1                2.8 +/-    1.94       6.9 +/-    1.94  0.130 / 0.380
G16     123.7          58.8                6.5 +/-    1.23       7.5 +/-    1.23  0.120 / 0.390
G22     196.7          55.1                5.3 +/-    0.32       6.3 +/-    0.32  0.060 / 0.050
G23     322.8          52.7                4.6 +/-    0.65       5.6 +/-    0.65  0.050 / 0.050
G26     68.1           51.0                5.0 +/-    0.92       6.2 +/-    0.92  0.050 / 0.050
G31     53.2           17.5                2.2 +/-    3.13       5.2 +/-    3.13  0.040 / 0.040