PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/23-16:12:50
G01     286.6          40.8                0.6 +/-    1.02       0.9 +/-    1.02  0.040 / 0.050
G03     313.6          22.9                7.7 +/-    0.98      15.7 +/-    0.98  0.040 / 0.060
G10     122.3          26.4                9.6 +/-    1.86      18.2 +/-    1.86  0.060 / 0.050
G11     264.9          24.7                9.1 +/-    4.62      17.9 +/-    4.62  0.040 / 0.060
G14     26.3           57.9                7.9 +/-    1.83       9.1 +/-    1.83  0.080 / 0.150
G22     314.6          43.1                8.0 +/-    0.68      11.0 +/-    0.68  0.070 / 0.100
G25     64.1           19.1                7.8 +/-    1.86      17.7 +/-    1.86  0.020 / 0.020
G26     154.1          16.1               12.2 +/-    1.08      29.5 +/-    1.08  0.020 / 0.020
G31     103.2          79.7                9.2 +/-    0.48       9.3 +/-    0.48  0.040 / 0.070
G32     54.7           39.1                7.6 +/-    0.80      11.2 +/-    0.80  0.040 / 0.050