PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-02:12:30
G08     299.0          22.7                7.0 +/-    1.66      14.4 +/-    1.66  0.060 / 0.090
G10     349.3          62.1                7.2 +/-    0.56       8.0 +/-    0.56  0.070 / 0.090
G14     224.3          41.6               11.0 +/-    1.15      15.6 +/-    1.15  0.030 / 0.030
G18     52.0           55.7                7.9 +/-    0.47       9.3 +/-    0.47  0.030 / 0.040
G21     141.7          47.2               10.0 +/-    1.04      13.0 +/-    1.04  0.050 / 0.080
G24     64.7           29.2                7.3 +/-    0.64      13.0 +/-    0.64  0.050 / 0.070
G27     260.8          34.8               10.3 +/-    1.56      16.4 +/-    1.56  0.050 / 0.100
G32     233.7          59.8               11.2 +/-    0.76      12.7 +/-    0.76  0.070 / 0.110