PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/21-23:43:10
G01     224.9          15.9                7.6 +/-    3.41      18.5 +/-    3.41  0.040 / 0.040
G03     284.3          68.1                5.4 +/-    0.76       5.7 +/-    0.76  0.040 / 0.040
G09     296.0          11.5                2.3 +/-   27.20       6.2 +/-   27.20  0.110 / 0.250
G14     88.2           22.8                5.4 +/-    0.89      11.2 +/-    0.89  0.100 / 0.260
G16     145.0          46.5                8.9 +/-    0.75      11.7 +/-    0.75  0.100 / 0.200
G22     215.3          69.4                7.1 +/-    0.67       7.5 +/-    0.67  0.130 / 0.190
G23     307.5          36.8                5.7 +/-    1.73       8.8 +/-    1.73  0.060 / 0.090
G26     96.4           54.9                6.5 +/-    0.62       7.7 +/-    0.62  0.050 / 0.080
G31     45.3           32.9                3.9 +/-    0.66       6.5 +/-    0.66  0.030 / 0.040