PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-23:57:40
G01     224.4          15.4                7.9 +/-    1.72      19.5 +/-    1.72  0.040 / 0.040
G03     282.3          68.4                5.1 +/-    0.65       5.5 +/-    0.65  0.040 / 0.040
G09     296.5          12.2                7.0 +/-    2.28      18.6 +/-    2.28  0.140 / 0.210
G14     88.8           22.3                5.2 +/-    1.04      10.8 +/-    1.04  0.140 / 0.250
G16     144.1          47.3                8.7 +/-    0.92      11.3 +/-    0.92  0.110 / 0.240
G22     213.8          68.7                6.2 +/-    0.66       6.6 +/-    0.66  0.100 / 0.320
G23     308.0          37.4                4.7 +/-    1.48       7.1 +/-    1.48  0.050 / 0.080
G26     94.7           54.9                5.7 +/-    0.53       6.8 +/-    0.53  0.040 / 0.060
G31     45.7           32.1                3.9 +/-    0.62       6.6 +/-    0.62  0.030 / 0.040