PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-06:13:00
G07     329.6          57.2                5.7 +/-    0.48       6.6 +/-    0.48  0.040 / 0.040
G08     109.2          50.5                8.4 +/-    0.49      10.5 +/-    0.49  0.040 / 0.040
G09     193.4          77.1                7.3 +/-    0.43       7.5 +/-    0.43  0.050 / 0.080
G11     149.5          11.1                4.0 +/-    7.93      10.8 +/-    7.93  0.050 / 0.060
G23     153.6          44.8                7.8 +/-    0.73      10.5 +/-    0.73  0.030 / 0.030
G27     59.6           33.7                5.4 +/-    1.65       8.8 +/-    1.65  0.030 / 0.030
G28     232.5          19.3                4.4 +/-    1.56       9.7 +/-    1.56  0.040 / 0.050
G30     297.8          31.0                5.5 +/-    1.15       9.4 +/-    1.15  0.050 / 0.050