PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-21:27:30
G01     319.5          16.3                7.1 +/-    2.03      17.0 +/-    2.03  0.120 / 0.240
G08     258.6          14.1                9.2 +/-    1.14      23.3 +/-    1.14  0.100 / 0.230
G10     75.9           55.0                7.1 +/-    0.85       8.5 +/-    0.85  0.060 / 0.070
G11     304.8          22.4                6.5 +/-    1.90      13.4 +/-    1.90  0.060 / 0.080
G14     292.9          70.5                8.4 +/-    0.58       8.9 +/-    0.58  0.030 / 0.030
G18     100.5          29.4                9.9 +/-    0.79      17.5 +/-    0.79  0.050 / 0.030
G31     179.2          37.1               12.2 +/-    2.14      18.6 +/-    2.14  0.050 / 0.050
G32     358.2          69.7                8.1 +/-    0.85       8.5 +/-    0.85  0.050 / 0.060