PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/31-01:42:40
G01     235.0          24.9                6.5 +/-    0.69      12.6 +/-    0.69  0.030 / 0.030
G03     307.5          57.6                3.7 +/-    1.16       4.3 +/-    1.16  0.030 / 0.040
G14     77.1           30.1                5.0 +/-    0.91       8.8 +/-    0.91  0.160 / 0.210
G16     159.9          30.9                7.5 +/-    1.82      12.9 +/-    1.82  0.160 / 0.210
G22     261.8          75.3                6.2 +/-    0.75       6.4 +/-    0.75  0.060 / 0.160
G23     298.2          28.3                3.6 +/-    1.07       6.5 +/-    1.07  0.050 / 0.160
G26     123.9          49.4                7.0 +/-    1.17       8.9 +/-    1.17  0.040 / 0.060
G31     40.1           46.8                3.9 +/-    0.66       5.1 +/-    0.66  0.040 / 0.070
G32     89.9           15.0                4.4 +/-    1.76      10.9 +/-    1.76  0.070 / 0.190