PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-07:13:10
G07     330.0          57.4                4.8 +/-    0.76       5.6 +/-    0.76  0.130 / 0.450
G08     110.9          50.5                9.7 +/-    0.93      12.1 +/-    0.93  0.110 / 0.430
G09     196.2          77.7                6.5 +/-    0.84       6.6 +/-    0.84  0.040 / 0.060
G11     149.3          11.1                2.5 +/-   16.55       6.8 +/-   16.55  0.040 / 0.070
G23     153.3          44.4                9.4 +/-    1.41      12.8 +/-    1.41  0.030 / 0.050
G27     59.9           33.8                5.6 +/-    1.09       9.1 +/-    1.09  0.030 / 0.050
G28     232.4          19.5                7.4 +/-    3.11      16.5 +/-    3.11  0.050 / 0.080
G30     297.9          31.4                2.7 +/-    1.02       4.5 +/-    1.02  0.030 / 0.070