PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/20-23:43:00
G05     48.7           17.1                8.9 +/-    0.76      21.0 +/-    0.76  0.060 / 0.170
G10     235.9          12.1               15.3 +/-    4.78      40.7 +/-    4.78  0.090 / 0.180
G13     76.2           36.3               13.0 +/-    0.91      20.1 +/-    0.91  0.100 / 0.270
G15     128.8          51.7               15.2 +/-    1.12      18.8 +/-    1.12  0.100 / 0.320
G16     313.3          13.1                8.2 +/-    1.43      21.4 +/-    1.43  0.070 / 0.070
G20     243.5          20.6               11.3 +/-    0.98      24.5 +/-    0.98  0.050 / 0.080
G21     312.0          46.0               11.2 +/-    1.13      14.9 +/-    1.13  0.230 / 0.420
G25     199.3          11.0               15.2 +/-   18.82      41.6 +/-   18.82  0.290 / 0.520
G26     286.3          20.9                9.6 +/-    2.35      20.7 +/-    2.35  0.110 / 0.320
G29     156.0          74.1               12.7 +/-    0.69      13.1 +/-    0.69  0.120 / 0.390