PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-13:27:50
G07     333.0          58.5                7.3 +/-    0.72       8.4 +/-    0.72  0.170 / 0.330
G08     109.8          49.9                8.9 +/-    0.62      11.2 +/-    0.62  0.260 / 0.400
G09     211.0          79.8                8.0 +/-    0.28       8.1 +/-    0.28  0.210 / 0.600
G11     148.6          10.7                0.7 +/-   18.09       1.9 +/-   18.09  0.240 / 0.590
G16     45.2           12.3                4.9 +/-    3.73      13.1 +/-    3.73  0.040 / 0.050
G23     152.6          45.2                9.7 +/-    0.72      13.1 +/-    0.72  0.050 / 0.050
G27     61.8           34.8                8.0 +/-    1.09      12.7 +/-    1.09  0.050 / 0.050
G28     232.0          20.1                8.1 +/-    1.80      17.8 +/-    1.80  0.060 / 0.080
G30     299.4          34.5                6.9 +/-    1.33      11.0 +/-    1.33  0.050 / 0.070