PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-09:28:10
G07     332.6          57.7                4.6 +/-    0.76       5.3 +/-    0.76  0.050 / 0.070
G08     100.4          50.5                7.7 +/-    0.56       9.6 +/-    0.56  0.030 / 0.060
G09     186.7          74.6                7.4 +/-    1.09       7.6 +/-    1.09  0.160 / 0.090
G11     145.7          11.3                6.0 +/-    5.49      16.2 +/-    5.49  0.090 / 0.080
G16     45.7           12.0                3.0 +/-    2.20       8.0 +/-    2.20  0.040 / 0.030
G23     155.0          46.6                7.8 +/-    0.75      10.2 +/-    0.75  0.040 / 0.040
G27     56.9           32.1                4.9 +/-    1.26       8.1 +/-    1.26  0.040 / 0.050
G28     235.4          27.7                5.9 +/-    2.12      10.8 +/-    2.12  0.030 / 0.050
G30     298.8          31.8                5.6 +/-    1.68       9.5 +/-    1.68  0.130 / 0.160