PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-22:28:00
G08     295.8          23.1               11.1 +/-    1.17      22.7 +/-    1.17  0.030 / 0.040
G10     357.5          62.7                9.3 +/-    0.63      10.3 +/-    0.63  0.030 / 0.030
G14     227.2          44.5               13.5 +/-    0.78      18.3 +/-    0.78  0.080 / 0.130
G18     59.1           52.8                9.7 +/-    0.85      11.9 +/-    0.85  0.090 / 0.140
G21     143.8          41.5               12.5 +/-    0.80      17.7 +/-    0.80  0.060 / 0.110
G24     60.8           28.0                9.0 +/-    1.10      16.5 +/-    1.10  0.060 / 0.110
G27     256.6          33.2               12.4 +/-    1.13      20.3 +/-    1.13  0.050 / 0.080
G32     238.3          61.4               11.7 +/-    0.39      13.1 +/-    0.39  0.050 / 0.090