PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-03:57:30
G03     248.1          68.3                5.1 +/-    0.41       5.4 +/-    0.41  0.040 / 0.050
G09     303.2          18.6                3.5 +/-    0.65       7.9 +/-    0.65  0.040 / 0.050
G14     99.4           14.0                6.0 +/-    1.39      15.2 +/-    1.39  0.030 / 0.050
G16     137.4          57.1                7.4 +/-    0.73       8.7 +/-    0.73  0.030 / 0.050
G22     197.2          57.7                7.7 +/-    1.35       8.9 +/-    1.35  0.060 / 0.110
G23     317.0          46.5                4.4 +/-    0.71       5.8 +/-    0.71  0.060 / 0.130
G26     77.4           55.5                5.3 +/-    0.55       6.3 +/-    0.55  0.090 / 0.150
G31     50.3           24.0                3.0 +/-    1.31       5.9 +/-    1.31  0.090 / 0.160