PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-00:12:30
G08     286.4          23.4               12.6 +/-    1.05      25.6 +/-    1.05  0.030 / 0.020
G10     16.7           63.3               12.6 +/-    0.62      13.9 +/-    0.62  0.040 / 0.030
G14     235.6          52.5               14.0 +/-    2.14      17.1 +/-    2.14  0.110 / 0.110
G18     69.7           48.6               11.8 +/-    1.30      15.2 +/-    1.30  0.130 / 0.150
G21     148.2          33.7               14.0 +/-    0.85      22.7 +/-    0.85  0.030 / 0.030
G24     52.8           24.3                9.4 +/-    1.68      18.8 +/-    1.68  0.030 / 0.030
G27     247.4          28.5               13.9 +/-    0.89      25.1 +/-    0.89  0.100 / 0.100
G32     254.5          68.7               11.4 +/-    0.52      12.1 +/-    0.52  0.090 / 0.120