PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-10:12:40
G01     87.1           32.4                4.6 +/-    1.94       7.7 +/-    1.94  0.050 / 0.060
G07     128.0          42.4                7.6 +/-    0.48      10.7 +/-    0.48  0.070 / 0.050
G11     64.4           37.9                5.6 +/-    0.90       8.4 +/-    0.90  0.020 / 0.020
G13     291.2          37.1                8.2 +/-    4.40      12.5 +/-    4.40  0.020 / 0.030
G17     216.1          58.1                7.4 +/-    0.88       8.6 +/-    0.88  0.060 / 0.110
G18     59.7           22.5                4.4 +/-    2.48       9.1 +/-    2.48  0.050 / 0.130
G19     216.1          25.3                6.4 +/-    2.98      12.4 +/-    2.98  0.040 / 0.050
G28     352.1          61.7                4.6 +/-    0.47       5.1 +/-    0.47  0.040 / 0.050
G30     110.1          75.9                6.4 +/-    0.64       6.5 +/-    0.64  0.100 / 0.080