PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-19:43:00
G05     48.5           19.1                8.8 +/-    0.72      19.7 +/-    0.72  0.080 / 0.140
G10     236.4          12.9               11.5 +/-    2.64      30.1 +/-    2.64  0.080 / 0.140
G13     75.0           36.1               11.5 +/-    0.81      17.8 +/-    0.81  0.040 / 0.100
G15     132.8          51.6               13.5 +/-    0.65      16.7 +/-    0.65  0.060 / 0.070
G16     313.3          12.9                9.5 +/-    1.37      24.9 +/-    1.37  0.100 / 0.330
G20     248.4          37.1               12.8 +/-    1.20      19.6 +/-    1.20  0.110 / 0.360
G21     313.6          47.2               10.7 +/-    1.37      13.9 +/-    1.37  0.060 / 0.130
G26     286.8          20.4               10.8 +/-    0.90      23.5 +/-    0.90  0.060 / 0.120
G29     155.8          72.7               14.2 +/-    0.78      14.8 +/-    0.78  0.040 / 0.060