PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/23-00:27:50
G08     309.0          19.7               10.4 +/-    2.61      23.1 +/-    2.61  0.040 / 0.060
G10     330.9          59.9                7.1 +/-    0.53       8.1 +/-    0.53  0.030 / 0.050
G14     217.7          29.1               13.3 +/-    1.69      23.7 +/-    1.69  0.040 / 0.060
G15     46.7           14.5                6.6 +/-    1.21      16.5 +/-    1.21  0.040 / 0.060
G20     316.8          55.7                9.3 +/-    1.57      11.0 +/-    1.57  0.040 / 0.030
G21     133.5          59.1                9.5 +/-    0.89      10.9 +/-    0.89  0.030 / 0.030
G24     73.0           29.3                8.0 +/-    0.67      14.1 +/-    0.67  0.090 / 0.290
G27     276.2          37.4               11.7 +/-    0.84      17.8 +/-    0.84  0.120 / 0.220
G32     222.5          53.5               11.1 +/-    3.80      13.4 +/-    3.80  0.070 / 0.080