PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/17-18:28:00
G01     319.1          18.3                7.9 +/-    0.77      18.2 +/-    0.77  0.100 / 0.200
G08     255.1          13.1                7.2 +/-    1.28      18.8 +/-    1.28  0.110 / 0.170
G10     80.5           52.4                8.9 +/-    0.93      11.0 +/-    0.93  0.030 / 0.030
G11     301.8          24.0                8.8 +/-    2.70      17.6 +/-    2.70  0.030 / 0.040
G14     299.2          71.2                8.4 +/-    0.66       8.8 +/-    0.66  0.060 / 0.040
G18     302.2          43.4                8.1 +/-    0.73      11.2 +/-    0.73  0.050 / 0.060
G20     105.6          28.8                8.7 +/-    1.27      15.7 +/-    1.27  0.100 / 0.210
G22     300.9          10.3               -1.0 +/-    7.99      -2.8 +/-    7.99  0.080 / 0.220
G31     179.2          38.9                9.2 +/-    1.69      13.6 +/-    1.69  0.110 / 0.300
G32     5.5            68.0                9.4 +/-    0.74      10.0 +/-    0.74  0.110 / 0.390