PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-00:28:00
G08     316.2          15.2                8.4 +/-    4.01      20.8 +/-    4.01  0.050 / 0.090
G10     312.2          55.8                9.7 +/-    0.71      11.4 +/-    0.71  0.050 / 0.080
G14     213.4          23.0               15.5 +/-    1.90      31.8 +/-    1.90  0.030 / 0.040
G15     45.6           20.3                9.4 +/-    0.85      20.5 +/-    0.85  0.030 / 0.050
G18     18.9           63.6               10.2 +/-    0.54      11.3 +/-    0.54  0.040 / 0.050
G20     79.0           10.8                9.3 +/-    1.98      25.6 +/-    1.98  0.040 / 0.040
G21     121.0          65.6               13.9 +/-    0.62      15.1 +/-    0.62  0.030 / 0.050
G24     87.5           29.7               11.6 +/-    0.87      20.4 +/-    0.87  0.040 / 0.060
G27     286.2          37.9               10.5 +/-    1.26      15.8 +/-    1.26  0.110 / 0.250
G32     216.4          40.2               13.5 +/-    0.94      19.6 +/-    0.94  0.120 / 0.260