PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-02:57:50
G08     313.8          16.6                8.2 +/-    1.98      19.6 +/-    1.98  0.060 / 0.080
G10     322.6          58.4                9.1 +/-    0.78      10.5 +/-    0.78  0.060 / 0.070
G14     215.9          23.7               13.9 +/-    2.30      27.9 +/-    2.30  0.090 / 0.310
G15     46.1           16.7                6.3 +/-    0.52      15.0 +/-    0.52  0.090 / 0.320
G20     354.1          64.8               16.2 +/-    0.46      17.7 +/-    0.46  0.070 / 0.140
G21     128.3          62.8                9.8 +/-    0.71      10.8 +/-    0.71  0.080 / 0.150
G24     78.6           29.6                8.0 +/-    1.13      14.1 +/-    1.13  0.040 / 0.050
G27     281.6          37.7               10.4 +/-    0.69      15.7 +/-    0.69  0.040 / 0.050
G32     219.0          49.2               10.6 +/-    1.25      13.5 +/-    1.25  0.040 / 0.030