PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-17:58:00
G01     252.9          36.0               10.6 +/-    2.52      16.6 +/-    2.52  0.040 / 0.030
G03     316.1          45.2                9.0 +/-    0.68      12.1 +/-    0.68  0.030 / 0.040
G11     240.8          13.5                9.1 +/-    2.32      23.5 +/-    2.32  0.030 / 0.030
G14     57.8           42.7                8.2 +/-    1.11      11.4 +/-    1.11  0.030 / 0.040
G22     305.7          66.1                9.0 +/-    0.37       9.8 +/-    0.37  0.160 / 0.250
G23     286.1          19.5                9.3 +/-    1.94      20.7 +/-    1.94  0.180 / 0.170
G25     41.2           11.4                8.6 +/-    3.14      23.3 +/-    3.14  0.050 / 0.080
G26     137.2          37.0               11.8 +/-    0.66      18.0 +/-    0.66  0.040 / 0.080
G31     41.3           59.4                8.2 +/-    0.42       9.3 +/-    0.42  0.090 / 0.090
G32     76.5           23.2                8.8 +/-    1.15      17.9 +/-    1.15  0.080 / 0.090