PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-21:27:40
G01     319.5          16.3                6.9 +/-    1.68      16.7 +/-    1.68  0.140 / 0.260
G08     258.6          14.1                9.1 +/-    3.60      23.0 +/-    3.60  0.140 / 0.230
G10     75.9           55.0                8.2 +/-    0.60       9.8 +/-    0.60  0.070 / 0.070
G11     304.8          22.4                8.3 +/-    1.20      17.3 +/-    1.20  0.060 / 0.060
G14     292.9          70.5                7.7 +/-    0.77       8.1 +/-    0.77  0.040 / 0.030
G18     100.5          29.4                9.6 +/-    1.12      17.1 +/-    1.12  0.040 / 0.040
G31     179.2          37.1               11.7 +/-    0.66      17.9 +/-    0.66  0.030 / 0.020
G32     358.2          69.7                7.7 +/-    0.29       8.1 +/-    0.29  0.020 / 0.020