PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-22:27:40
G08     299.1          22.8                7.4 +/-    1.10      15.3 +/-    1.10  0.060 / 0.100
G10     352.9          62.3                5.6 +/-    0.63       6.2 +/-    0.63  0.060 / 0.100
G14     224.1          39.5                9.4 +/-    2.05      13.8 +/-    2.05  0.070 / 0.140
G20     54.8           55.9                7.7 +/-    0.67       9.0 +/-    0.67  0.080 / 0.120
G21     142.5          47.1               11.0 +/-    0.76      14.3 +/-    0.76  0.050 / 0.070
G24     60.5           26.5                9.0 +/-    0.94      17.1 +/-    0.94  0.050 / 0.080
G27     263.8          34.7                9.4 +/-    1.21      15.0 +/-    1.21  0.060 / 0.120
G32     234.4          62.8               10.5 +/-    1.16      11.6 +/-    1.16  0.060 / 0.110