PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-18:13:00
G10     296.4          51.1                9.0 +/-    2.52      11.2 +/-    2.52  0.070 / 0.090
G14     210.2          12.2                5.7 +/-   21.21      15.0 +/-   21.21  0.060 / 0.080
G15     45.9           27.3                7.5 +/-    1.62      13.9 +/-    1.62  0.030 / 0.030
G18     1.7            65.8                8.9 +/-    0.75       9.6 +/-    0.75  0.030 / 0.030
G20     70.7           19.7                9.2 +/-    1.29      20.3 +/-    1.29  0.080 / 0.190
G21     103.3          70.0               11.2 +/-    0.68      11.8 +/-    0.68  0.070 / 0.180
G24     99.1           26.5               10.0 +/-    1.29      18.8 +/-    1.29  0.090 / 0.130
G27     299.2          35.0                9.8 +/-    1.23      15.6 +/-    1.23  0.070 / 0.110
G32     211.1          30.4               10.1 +/-    2.28      17.6 +/-    2.28  0.130 / 0.160