PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-02:12:50
G08     270.1          20.0                8.9 +/-    1.37      19.6 +/-    1.37  0.040 / 0.030
G10     50.5           60.8                9.3 +/-    0.65      10.5 +/-    0.65  0.030 / 0.030
G11     313.2          15.8                5.1 +/-    2.31      12.5 +/-    2.31  0.020 / 0.020
G14     259.3          64.8               11.4 +/-    0.75      12.4 +/-    0.75  0.020 / 0.060
G18     86.7           39.9                9.3 +/-    1.02      13.5 +/-    1.02  0.130 / 0.300
G21     153.2          19.1                8.7 +/-    1.31      19.6 +/-    1.31  0.180 / 0.230
G24     42.4           14.8                6.6 +/-    1.69      16.5 +/-    1.69  0.060 / 0.080
G27     233.9          18.6               12.4 +/-    2.85      28.4 +/-    2.85  0.070 / 0.080
G31     180.1          24.5               10.1 +/-    1.84      20.0 +/-    1.84  0.080 / 0.120
G32     311.3          75.3               10.1 +/-    0.52      10.4 +/-    0.52  0.090 / 0.100