PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-01:57:50
G08     287.3          23.4                9.8 +/-    0.78      19.8 +/-    0.78  0.100 / 0.140
G10     18.0           63.0                5.3 +/-    0.69       5.8 +/-    0.69  0.120 / 0.120
G14     234.0          49.1               11.3 +/-    2.24      14.4 +/-    2.24  0.040 / 0.080
G18     317.6          13.8                5.0 +/-    1.24      12.8 +/-    1.24  0.050 / 0.090
G20     14.3           66.9               25.3 +/-    0.70      27.3 +/-    0.70  0.030 / 0.030
G21     148.9          36.9                9.6 +/-    0.76      14.8 +/-    0.76  0.030 / 0.030
G24     51.0           22.2                8.7 +/-    3.54      18.1 +/-    3.54  0.100 / 0.270
G27     249.8          29.2               11.2 +/-    1.99      19.8 +/-    1.99  0.110 / 0.220
G31     181.5          12.0                5.8 +/-   21.24      15.6 +/-   21.24  0.070 / 0.100
G32     260.1          73.1                8.5 +/-    0.60       8.9 +/-    0.60  0.090 / 0.120