PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-23:12:30
G08     295.5          23.3                9.8 +/-    0.85      19.9 +/-    0.85  0.050 / 0.060
G10     0.8            62.8                9.6 +/-    0.64      10.7 +/-    0.64  0.040 / 0.070
G14     226.9          42.7               11.8 +/-    1.86      16.4 +/-    1.86  0.070 / 0.140
G20     60.5           54.1               10.2 +/-    0.65      12.3 +/-    0.65  0.090 / 0.100
G21     144.8          43.7               11.7 +/-    0.85      16.1 +/-    0.85  0.060 / 0.080
G24     57.1           25.3               10.4 +/-    1.99      20.1 +/-    1.99  0.090 / 0.110
G27     259.3          33.2               10.6 +/-    1.56      17.3 +/-    1.56  0.120 / 0.160
G32     240.4          66.2               11.4 +/-    0.94      12.4 +/-    0.94  0.110 / 0.110