PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-02:28:00
G08     288.1          23.5               10.2 +/-    1.00      20.6 +/-    1.00  0.040 / 0.040
G10     12.3           63.3                9.8 +/-    0.46      10.9 +/-    0.46  0.030 / 0.040
G14     233.6          51.2               12.4 +/-    0.66      15.4 +/-    0.66  0.040 / 0.100
G18     66.5           50.3               10.7 +/-    0.95      13.4 +/-    0.95  0.050 / 0.130
G21     147.5          36.6               11.3 +/-    0.83      17.4 +/-    0.83  0.050 / 0.130
G24     54.4           25.2               10.0 +/-    0.95      19.5 +/-    0.95  0.060 / 0.100
G27     249.2          29.6               11.1 +/-    1.72      19.7 +/-    1.72  0.090 / 0.100
G32     251.9          68.7               11.5 +/-    0.51      12.2 +/-    0.51  0.090 / 0.130