PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-00:27:50
G08     264.4          17.5               12.6 +/-    2.07      29.4 +/-    2.07  0.030 / 0.030
G10     62.7           58.5                9.9 +/-    0.70      11.4 +/-    0.70  0.030 / 0.030
G11     309.6          19.3               11.1 +/-    1.54      25.0 +/-    1.54  0.170 / 0.330
G14     273.3          68.2               10.9 +/-    0.74      11.6 +/-    0.74  0.150 / 0.310
G18     93.3           35.3               11.2 +/-    0.77      17.7 +/-    0.77  0.120 / 0.370
G21     154.0          12.3               12.0 +/-    2.23      31.9 +/-    2.23  0.140 / 0.420
G24     39.7           10.3               11.2 +/-    1.92      31.1 +/-    1.92  0.040 / 0.060
G27     229.3          14.4               15.0 +/-    2.37      37.8 +/-    2.37  0.040 / 0.060
G31     180.1          29.6               15.3 +/-    1.52      26.9 +/-    1.52  0.130 / 0.090
G32     330.9          73.8               11.1 +/-    0.62      11.5 +/-    0.62  0.060 / 0.110