PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-10:57:40
G01     58.1           29.3                5.5 +/-    1.45       9.8 +/-    1.45  0.030 / 0.030
G07     142.0          19.9                4.8 +/-    1.67      10.7 +/-    1.67  0.030 / 0.030
G11     48.1           24.8                5.1 +/-    2.18       9.9 +/-    2.18  0.090 / 0.170
G13     260.3          36.0                7.5 +/-    1.92      11.7 +/-    1.92  0.110 / 0.200
G15     294.0          15.9                2.3 +/-    1.28       5.6 +/-    1.28  0.110 / 0.200
G17     254.1          74.7                7.2 +/-    0.40       7.4 +/-    0.40  0.240 / 0.380
G18     41.3           12.1                3.9 +/-    1.10      10.3 +/-    1.10  0.090 / 0.080
G19     232.6          53.3                6.7 +/-    2.50       8.1 +/-    2.50  0.100 / 0.070
G28     24.2           59.7                7.0 +/-    1.09       7.9 +/-    1.09  0.040 / 0.060
G30     144.6          53.2               10.2 +/-    0.55      12.4 +/-    0.55  0.040 / 0.050