PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/19-08:43:10
G03     250.8          69.3                7.3 +/-    1.04       7.8 +/-    1.04  0.050 / 0.060
G09     302.2          17.5                3.3 +/-    1.08       7.7 +/-    1.08  0.030 / 0.050
G14     96.4           18.4                4.6 +/-    0.93      10.6 +/-    0.93  0.100 / 0.230
G16     127.3          57.1                7.4 +/-    0.48       8.7 +/-    0.48  0.090 / 0.250
G22     196.9          58.4                7.5 +/-    0.95       8.7 +/-    0.95  0.030 / 0.060
G23     317.5          47.4                3.4 +/-    1.06       4.5 +/-    1.06  0.040 / 0.050
G26     71.5           51.4                6.4 +/-    0.42       7.9 +/-    0.42  0.040 / 0.050
G31     51.3           20.0                1.6 +/-    0.58       3.6 +/-    0.58  0.040 / 0.050