PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/17-00:12:30
G08     296.1          23.1               12.4 +/-    0.70      25.3 +/-    0.70  0.020 / 0.030
G10     356.0          62.6               10.8 +/-    0.55      12.0 +/-    0.55  0.050 / 0.030
G14     226.7          44.3               14.4 +/-    2.26      19.7 +/-    2.26  0.040 / 0.060
G18     57.5           53.6               12.7 +/-    0.76      15.4 +/-    0.76  0.050 / 0.050
G21     143.6          43.2               13.5 +/-    0.71      18.7 +/-    0.71  0.060 / 0.120
G24     61.4           28.2               12.0 +/-    1.87      21.9 +/-    1.87  0.050 / 0.110
G27     257.2          33.5               15.0 +/-    1.65      24.6 +/-    1.65  0.120 / 0.120
G32     237.6          61.3               13.4 +/-    1.60      15.1 +/-    1.60  0.070 / 0.090