PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/19-19:28:10
G10     286.6          48.1                7.7 +/-    0.70       9.9 +/-    0.70  0.090 / 0.130
G15     49.1           38.6                7.5 +/-    0.60      11.2 +/-    0.60  0.090 / 0.130
G20     333.3          65.1                7.7 +/-    1.08       8.4 +/-    1.08  0.040 / 0.040
G21     68.0           76.6                8.5 +/-    0.80       8.7 +/-    0.80  0.040 / 0.050
G24     102.2          23.0               10.6 +/-    1.75      21.8 +/-    1.75  0.080 / 0.210
G27     309.3          29.0                9.0 +/-    1.77      16.1 +/-    1.77  0.080 / 0.240
G29     168.4          14.9               10.8 +/-    3.39      27.0 +/-    3.39  0.040 / 0.050
G32     207.6          24.8               10.2 +/-    2.01      20.1 +/-    2.01  0.040 / 0.050