PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-02:58:10
G08     317.5          14.1                5.5 +/-    4.28      14.0 +/-    4.28  0.080 / 0.110
G10     308.8          54.9                6.2 +/-    1.28       7.4 +/-    1.28  0.090 / 0.080
G14     212.6          21.2                9.5 +/-    2.54      20.4 +/-    2.54  0.080 / 0.040
G15     45.7           23.7                6.0 +/-    2.71      12.1 +/-    2.71  0.070 / 0.040
G18     12.2           64.6                7.1 +/-    0.82       7.8 +/-    0.82  0.070 / 0.100
G20     77.8           11.4                6.2 +/-    3.47      16.9 +/-    3.47  0.070 / 0.090
G24     89.8           29.2                8.8 +/-    0.91      15.6 +/-    0.91  0.050 / 0.080
G27     288.8          37.6                5.9 +/-    1.47       8.9 +/-    1.47  0.080 / 0.070
G32     215.0          39.6                8.8 +/-    0.98      12.8 +/-    0.98  0.090 / 0.240