PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-04:57:50
G03     235.4          66.1                3.8 +/-    1.47       4.2 +/-    1.47  0.050 / 0.060
G07     250.5          10.9               -6.2 +/-    9.73     -17.0 +/-    9.73  0.040 / 0.050
G09     306.1          22.6                3.3 +/-    2.02       6.9 +/-    2.02  0.130 / 0.210
G14     103.2          10.7                4.6 +/-    2.05      12.6 +/-    2.05  0.040 / 0.040
G16     127.7          61.3                6.0 +/-    1.09       6.7 +/-    1.09  0.050 / 0.050
G22     193.5          52.5                3.8 +/-    1.00       4.7 +/-    1.00  0.290 / 0.300
G23     320.7          50.4                2.5 +/-    1.21       3.1 +/-    1.21  0.290 / 0.390
G26     68.2           53.0                1.3 +/-    0.87       1.6 +/-    0.87  0.040 / 0.040
G31     53.1           19.6                3.9 +/-    2.37       8.8 +/-    2.37  0.030 / 0.040