PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-16:57:40
G01     286.6          40.8                8.6 +/-    1.17      12.4 +/-    1.17  0.020 / 0.030
G03     313.5          22.3                5.6 +/-    2.44      11.7 +/-    2.44  0.020 / 0.030
G10     122.3          26.5               11.2 +/-    1.11      21.2 +/-    1.11  0.050 / 0.070
G11     264.5          24.8               11.1 +/-    1.23      21.8 +/-    1.23  0.040 / 0.090
G14     26.9           57.7                7.5 +/-    0.59       8.6 +/-    0.59  0.050 / 0.120
G22     314.5          42.6                8.4 +/-    0.94      11.8 +/-    0.94  0.060 / 0.110
G25     64.0           19.1                9.2 +/-    0.80      20.7 +/-    0.80  0.050 / 0.060
G26     154.4          16.0               12.8 +/-    1.12      31.1 +/-    1.12  0.050 / 0.060
G31     105.2          79.9                9.7 +/-    0.85       9.8 +/-    0.85  0.110 / 0.200
G32     54.6           39.3                8.8 +/-    1.09      12.9 +/-    1.09  0.100 / 0.140