PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-02:42:50
G08     316.0          15.1                6.9 +/-    2.61      17.0 +/-    2.61  0.090 / 0.050
G10     317.2          57.2               10.3 +/-    0.81      12.1 +/-    0.81  0.080 / 0.070
G14     214.6          20.9               17.3 +/-    3.66      37.2 +/-    3.66  0.040 / 0.030
G15     45.8           19.4                6.4 +/-    2.60      14.3 +/-    2.60  0.040 / 0.040
G20     344.0          64.2               11.0 +/-    1.52      12.1 +/-    1.52  0.150 / 0.260
G21     123.9          65.6               11.9 +/-    0.64      12.9 +/-    0.64  0.260 / 0.180
G24     82.2           29.4                9.3 +/-    1.98      16.6 +/-    1.98  0.080 / 0.120
G27     285.6          37.5               12.1 +/-    0.63      18.4 +/-    0.63  0.060 / 0.100
G32     216.8          46.2               14.3 +/-    1.26      18.9 +/-    1.26  0.140 / 0.290