PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-08:58:00
G08     99.2           50.8                7.0 +/-    0.58       8.7 +/-    0.58  0.040 / 0.040
G09     186.8          74.1                7.4 +/-    0.75       7.7 +/-    0.75  0.040 / 0.050
G11     145.3          11.8                5.6 +/-    1.82      15.0 +/-    1.82  0.040 / 0.070
G16     45.9           11.7                2.8 +/-    2.19       7.6 +/-    2.19  0.040 / 0.060
G23     155.3          45.7                7.5 +/-    0.84      10.1 +/-    0.84  0.070 / 0.060
G27     56.1           31.8                4.6 +/-    1.49       7.7 +/-    1.49  0.070 / 0.080
G28     236.0          28.4                8.4 +/-    1.49      15.2 +/-    1.49  0.080 / 0.110
G30     299.5          32.5                4.2 +/-    2.70       7.0 +/-    2.70  0.090 / 0.100