PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-03:12:50
G08     270.7          20.2               10.5 +/-    1.75      23.1 +/-    1.75  0.020 / 0.020
G10     49.1           61.0                7.1 +/-    0.97       8.0 +/-    0.97  0.020 / 0.010
G11     313.4          15.7                7.0 +/-    1.62      17.2 +/-    1.62  0.030 / 0.020
G14     258.1          64.5                9.4 +/-    0.58      10.3 +/-    0.58  0.030 / 0.020
G18     85.7           40.7                7.0 +/-    1.30      10.1 +/-    1.30  0.120 / 0.240
G21     153.1          20.1                6.3 +/-    1.52      13.8 +/-    1.52  0.120 / 0.290
G24     42.7           15.2                5.7 +/-    1.32      14.2 +/-    1.32  0.250 / 0.250
G27     234.4          19.0               12.4 +/-    2.67      27.9 +/-    2.67  0.250 / 0.310
G31     179.8          24.4                8.4 +/-    1.72      16.7 +/-    1.72  0.050 / 0.060
G32     311.1          75.5                9.0 +/-    0.69       9.2 +/-    0.69  0.050 / 0.050