PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-18:57:50
G05     48.4           19.6                6.5 +/-    0.67      14.5 +/-    0.67  0.100 / 0.330
G10     236.4          13.0                9.2 +/-    2.94      24.1 +/-    2.94  0.110 / 0.370
G13     75.0           36.1                8.5 +/-    0.61      13.3 +/-    0.61  0.060 / 0.070
G15     131.7          51.8               10.7 +/-    0.85      13.2 +/-    0.85  0.050 / 0.080
G16     313.4          12.8                7.2 +/-    2.66      18.8 +/-    2.66  0.080 / 0.170
G20     248.4          37.1               11.1 +/-    1.37      16.9 +/-    1.37  0.080 / 0.140
G21     313.9          47.4                8.4 +/-    1.46      11.0 +/-    1.46  0.060 / 0.120
G26     287.1          20.3                8.2 +/-    1.69      18.0 +/-    1.69  0.060 / 0.130
G29     155.5          72.5               11.2 +/-    1.72      11.6 +/-    1.72  0.040 / 0.050