PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/18-20:58:00
G08     267.7          18.5               10.5 +/-    1.24      23.9 +/-    1.24  0.090 / 0.190
G10     58.2           59.4                9.1 +/-    0.84      10.4 +/-    0.84  0.100 / 0.200
G11     312.1          16.7               10.7 +/-    3.22      25.6 +/-    3.22  0.060 / 0.160
G14     265.9          66.2                9.6 +/-    0.94      10.3 +/-    0.94  0.050 / 0.110
G18     91.5           35.9               10.3 +/-    0.58      16.1 +/-    0.58  0.090 / 0.420
G21     153.1          12.5               12.5 +/-    2.55      33.1 +/-    2.55  0.080 / 0.410
G24     40.6           12.0               10.4 +/-    1.06      27.7 +/-    1.06  0.150 / 0.220
G27     231.3          16.1               11.6 +/-    2.13      28.1 +/-    2.13  0.190 / 0.270
G31     180.7          26.8               13.3 +/-    2.12      25.0 +/-    2.12  0.030 / 0.030
G32     327.7          74.6                9.8 +/-    0.70      10.1 +/-    0.70  0.030 / 0.030