PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/18-02:43:10
G08     282.4          23.0                7.5 +/-    1.40      15.3 +/-    1.40  0.050 / 0.130
G10     24.5           63.1                5.5 +/-    0.75       6.1 +/-    0.75  0.050 / 0.140
G14     239.9          55.8                7.1 +/-    1.13       8.4 +/-    1.13  0.090 / 0.140
G18     73.1           47.4                5.8 +/-    0.42       7.5 +/-    0.42  0.070 / 0.160
G21     149.8          31.2               10.0 +/-    0.89      17.1 +/-    0.89  0.040 / 0.040
G24     49.9           22.4                6.1 +/-    0.91      12.7 +/-    0.91  0.040 / 0.040
G27     244.0          26.4               11.1 +/-    1.98      21.0 +/-    1.98  0.040 / 0.070
G31     182.2          13.5               11.4 +/-    1.05      29.5 +/-    1.05  0.040 / 0.080
G32     266.5          72.3                6.5 +/-    0.58       6.8 +/-    0.58  0.090 / 0.160