PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/18-20:58:10
G08     320.2          11.4                3.3 +/-   31.81       8.9 +/-   31.81  0.060 / 0.090
G10     303.3          53.3               10.8 +/-    0.88      13.0 +/-    0.88  0.050 / 0.080
G14     211.4          17.2               14.5 +/-    3.98      34.1 +/-    3.98  0.150 / 0.450
G15     45.6           23.8                9.9 +/-    1.15      19.9 +/-    1.15  0.110 / 0.410
G18     10.0           64.9               10.4 +/-    0.71      11.3 +/-    0.71  0.030 / 0.050
G20     74.5           15.5               10.5 +/-    2.16      25.7 +/-    2.16  0.030 / 0.050
G21     111.8          68.4               13.4 +/-    0.83      14.3 +/-    0.83  0.060 / 0.140
G24     94.0           28.2               12.6 +/-    0.97      23.0 +/-    0.97  0.080 / 0.160
G27     293.5          36.7               12.3 +/-    1.29      19.0 +/-    1.29  0.080 / 0.230
G32     213.4          33.7               13.6 +/-    1.18      22.0 +/-    1.18  0.090 / 0.250