PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-19:12:40
G01     232.7          22.9               10.2 +/-    2.39      21.0 +/-    2.39  0.030 / 0.030
G03     300.8          64.1               10.1 +/-    0.82      11.1 +/-    0.82  0.030 / 0.030
G14     78.8           30.1                9.0 +/-    1.11      15.8 +/-    1.11  0.110 / 0.140
G16     154.2          36.4               12.1 +/-    0.78      18.8 +/-    0.78  0.110 / 0.120
G22     240.4          75.5               10.4 +/-    0.44      10.7 +/-    0.44  0.110 / 0.150
G23     301.6          32.4                7.3 +/-    1.68      12.2 +/-    1.68  0.200 / 0.130
G26     111.9          51.5               10.8 +/-    0.36      13.4 +/-    0.36  0.070 / 0.100
G31     42.5           39.3                8.1 +/-    1.00      11.9 +/-    1.00  0.070 / 0.080
G32     93.3           10.7               10.7 +/-    2.42      29.5 +/-    2.42  0.050 / 0.080