PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/19-12:42:40
G08     272.4          18.0                5.4 +/-    3.35      12.6 +/-    3.35  0.050 / 0.040
G10     58.8           59.1                4.4 +/-    0.83       5.1 +/-    0.83  0.040 / 0.040
G11     313.9          14.4                2.1 +/-    1.94       5.4 +/-    1.94  0.200 / 0.380
G14     261.7          63.3                6.1 +/-    1.16       6.7 +/-    1.16  0.200 / 0.410
G21     154.1          15.3                5.2 +/-    3.74      12.7 +/-    3.74  0.190 / 0.150
G24     40.3           11.1                4.0 +/-    1.48      11.0 +/-    1.48  0.150 / 0.200
G27     231.8          16.3                5.0 +/-    2.09      12.1 +/-    2.09  0.060 / 0.090
G31     177.5          30.5                5.7 +/-    2.49       9.8 +/-    2.49  0.060 / 0.090
G32     340.1          74.3                5.0 +/-    0.48       5.2 +/-    0.48  0.030 / 0.030