PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-00:42:40
G08     295.2          23.5                6.3 +/-    0.62      12.8 +/-    0.62  0.050 / 0.100
G10     0.2            62.8                3.6 +/-    0.66       4.0 +/-    0.66  0.060 / 0.110
G14     226.8          42.5                5.6 +/-    1.88       7.9 +/-    1.88  0.060 / 0.060
G20     336.1          61.7                4.4 +/-    0.83       4.9 +/-    0.83  0.040 / 0.070
G21     144.8          45.1                5.0 +/-    0.66       6.7 +/-    0.66  0.090 / 0.130
G24     57.8           25.8                7.1 +/-    0.94      13.6 +/-    0.94  0.120 / 0.130
G27     258.6          33.4                4.8 +/-    1.93       7.8 +/-    1.93  0.080 / 0.140
G32     240.7          66.9                4.0 +/-    0.68       4.3 +/-    0.68  0.090 / 0.160