PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-06:43:10
G07     340.2          60.8                5.3 +/-    0.96       5.9 +/-    0.96  0.070 / 0.080
G08     98.2           52.8                6.7 +/-    0.35       8.1 +/-    0.35  0.060 / 0.080
G09     184.7          70.1                7.5 +/-    1.10       8.0 +/-    1.10  0.040 / 0.060
G11     145.2          15.4                6.3 +/-    1.95      15.6 +/-    1.95  0.040 / 0.040
G23     155.9          37.6                7.6 +/-    0.43      11.5 +/-    0.43  0.090 / 0.070
G27     53.0           30.4                4.4 +/-    0.74       7.7 +/-    0.74  0.070 / 0.100
G28     237.1          24.8                5.5 +/-    2.14      10.8 +/-    2.14  0.080 / 0.110
G30     303.1          35.6                5.1 +/-    0.61       8.1 +/-    0.61  0.070 / 0.090