PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-07:27:40
G07     329.9          56.8                3.7 +/-    0.98       4.4 +/-    0.98  0.040 / 0.030
G08     102.7          50.3                7.7 +/-    0.93       9.7 +/-    0.93  0.030 / 0.030
G09     193.0          76.8                5.8 +/-    1.15       6.0 +/-    1.15  0.050 / 0.050
G11     147.0          10.6               -0.7 +/-   23.13      -1.9 +/-   23.13  0.040 / 0.050
G16     45.1           14.1                4.5 +/-    2.67      11.4 +/-    2.67  0.090 / 0.190
G23     154.6          47.7                9.3 +/-    1.64      12.1 +/-    1.64  0.090 / 0.250
G27     58.0           32.7                4.6 +/-    0.70       7.7 +/-    0.70  0.110 / 0.300
G28     234.6          27.0                9.9 +/-    1.73      18.5 +/-    1.73  0.090 / 0.250
G30     298.3          31.7                3.2 +/-    1.24       5.5 +/-    1.24  0.060 / 0.080