PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-22:57:40
G08     316.3          15.0               10.3 +/-    2.55      25.6 +/-    2.55  0.030 / 0.060
G10     312.3          55.8               11.1 +/-    0.68      13.1 +/-    0.68  0.050 / 0.060
G14     213.4          22.8               21.6 +/-    1.15      44.4 +/-    1.15  0.060 / 0.100
G15     45.6           19.6                9.5 +/-    0.77      21.2 +/-    0.77  0.060 / 0.120
G18     20.2           63.4               11.4 +/-    0.50      12.6 +/-    0.50  0.050 / 0.090
G20     78.9           11.3               12.0 +/-    1.74      32.6 +/-    1.74  0.050 / 0.080
G21     121.4          64.8               13.8 +/-    1.07      15.1 +/-    1.07  0.050 / 0.080
G24     87.5           29.7               14.1 +/-    1.44      24.9 +/-    1.44  0.060 / 0.090
G27     286.3          37.9               13.1 +/-    1.13      19.8 +/-    1.13  0.120 / 0.330
G32     216.5          39.3               17.7 +/-    1.32      26.1 +/-    1.32  0.110 / 0.320