PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-01:12:30
G08     298.5          22.8                8.4 +/-    1.42      17.2 +/-    1.42  0.060 / 0.080
G10     350.6          62.2                8.1 +/-    0.63       9.0 +/-    0.63  0.060 / 0.090
G14     224.8          42.1               14.0 +/-    1.12      19.7 +/-    1.12  0.060 / 0.080
G18     53.5           55.1                9.8 +/-    0.41      11.7 +/-    0.41  0.060 / 0.090
G21     142.1          46.2               13.2 +/-    1.15      17.5 +/-    1.15  0.030 / 0.030
G24     64.0           29.0                9.3 +/-    0.62      16.6 +/-    0.62  0.030 / 0.030
G27     260.0          34.5               11.8 +/-    1.60      18.8 +/-    1.60  0.030 / 0.060
G32     234.4          59.8               12.4 +/-    0.82      14.1 +/-    0.82  0.030 / 0.060