PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/08-07:28:00
G07     331.3          57.8                2.7 +/-    0.63       3.1 +/-    0.63  0.050 / 0.040
G08     109.9          50.8                5.9 +/-    0.78       7.4 +/-    0.78  0.050 / 0.050
G09     194.8          77.0                3.5 +/-    0.60       3.5 +/-    0.60  0.110 / 0.280
G11     148.8          11.6                5.2 +/-    2.75      14.0 +/-    2.75  0.070 / 0.210
G23     153.6          43.5                4.6 +/-    1.43       6.3 +/-    1.43  0.040 / 0.080
G27     59.1           33.5                3.3 +/-    0.91       5.4 +/-    0.91  0.040 / 0.080
G28     232.9          20.2                4.9 +/-    2.12      10.7 +/-    2.12  0.050 / 0.030
G30     298.6          32.0                3.0 +/-    1.86       5.0 +/-    1.86  0.040 / 0.030