PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-02:57:50
G08     289.4          23.6               11.0 +/-    1.34      22.3 +/-    1.34  0.060 / 0.130
G10     9.5            63.2                8.4 +/-    0.50       9.3 +/-    0.50  0.050 / 0.100
G14     232.4          50.1               12.7 +/-    0.91      16.0 +/-    0.91  0.030 / 0.030
G18     64.6           51.2               10.2 +/-    0.66      12.7 +/-    0.66  0.040 / 0.040
G21     147.0          38.1               10.8 +/-    1.09      16.2 +/-    1.09  0.100 / 0.110
G24     55.5           25.8                9.0 +/-    0.49      17.3 +/-    0.49  0.100 / 0.110
G27     250.4          30.3               12.2 +/-    1.82      21.3 +/-    1.82  0.060 / 0.100
G32     249.5          68.0               10.3 +/-    0.38      11.0 +/-    0.38  0.040 / 0.110