PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-21:12:50
G10     269.5          39.8               10.3 +/-    1.00      15.0 +/-    1.00  0.130 / 0.260
G13     40.8           16.3                7.5 +/-    1.47      18.2 +/-    1.47  0.160 / 0.270
G15     60.8           52.1                8.6 +/-    0.62      10.6 +/-    0.62  0.050 / 0.040
G16     276.3          11.5                7.5 +/-    7.74      20.4 +/-    7.74  0.050 / 0.050
G20     301.9          61.3                7.3 +/-    0.73       8.2 +/-    0.73  0.140 / 0.390
G21     8.7            73.1                9.5 +/-    1.22       9.9 +/-    1.22  0.120 / 0.500
G24     116.1          15.8               10.9 +/-    1.24      26.7 +/-    1.24  0.180 / 0.640
G27     318.1          19.7                8.2 +/-    1.80      18.2 +/-    1.80  0.160 / 0.640
G29     168.3          29.4               10.2 +/-    0.86      18.1 +/-    0.86  0.100 / 0.240
G32     204.3          12.1               10.8 +/-    2.52      28.7 +/-    2.52  0.120 / 0.220