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                7.2 +/-    1.50      10.4 +/-    1.50  0.020 / 0.030
G03     313.6          22.9                5.6 +/-    2.68      11.5 +/-    2.68  0.020 / 0.020
G10     122.3          26.4               11.7 +/-    1.50      22.1 +/-    1.50  0.040 / 0.100
G11     264.9          24.7               10.0 +/-    1.53      19.8 +/-    1.53  0.040 / 0.080
G14     26.3           57.9                8.1 +/-    0.69       9.4 +/-    0.69  0.050 / 0.060
G22     314.6          43.1                7.7 +/-    0.99      10.6 +/-    0.99  0.050 / 0.060
G25     64.1           19.1                8.5 +/-    0.69      19.2 +/-    0.69  0.060 / 0.100
G26     154.1          16.1               13.0 +/-    2.13      31.4 +/-    2.13  0.070 / 0.110
G31     103.2          79.7                9.9 +/-    0.47      10.0 +/-    0.47  0.050 / 0.090
G32     54.7           39.1                8.2 +/-    0.63      12.2 +/-    0.63  0.060 / 0.070