PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/06-00:57:40
G08     269.4          19.5                9.2 +/-    1.62      20.5 +/-    1.62  0.100 / 0.370
G10     55.3           59.4                8.9 +/-    1.14      10.1 +/-    1.14  0.110 / 0.350
G14     258.6          63.3                8.9 +/-    0.87       9.8 +/-    0.87  0.120 / 0.280
G18     313.8          29.7               10.3 +/-    2.80      18.1 +/-    2.80  0.150 / 0.320
G20     92.0           38.9               10.5 +/-    0.42      15.6 +/-    0.42  0.180 / 0.400
G21     154.3          18.7               11.6 +/-    2.26      26.3 +/-    2.26  0.130 / 0.340
G24     40.1           10.5                7.8 +/-    2.19      21.5 +/-    2.19  0.050 / 0.060
G27     235.1          18.3               12.9 +/-    1.02      29.6 +/-    1.02  0.040 / 0.060
G31     178.3          27.8               12.5 +/-    1.07      23.0 +/-    1.07  0.100 / 0.200
G32     332.1          75.4                9.3 +/-    0.77       9.5 +/-    0.77  0.100 / 0.220