PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/28-17:27:50
G01     235.2          25.0               10.0 +/-    1.80      19.5 +/-    1.80  0.030 / 0.030
G03     304.2          63.0               11.0 +/-    0.72      12.2 +/-    0.72  0.030 / 0.030
G14     75.4           32.6                8.8 +/-    1.32      14.5 +/-    1.32  0.100 / 0.130
G16     155.0          33.8               13.0 +/-    0.86      21.1 +/-    0.86  0.100 / 0.130
G22     249.1          76.4               10.4 +/-    0.26      10.6 +/-    0.26  0.080 / 0.050
G23     299.8          31.2               10.1 +/-    1.63      17.3 +/-    1.63  0.080 / 0.060
G26     115.6          50.0               11.1 +/-    0.73      14.0 +/-    0.73  0.080 / 0.110
G31     41.9           41.4                8.4 +/-    1.05      12.0 +/-    1.05  0.080 / 0.110
G32     91.1           12.1                9.8 +/-    1.43      26.0 +/-    1.43  0.070 / 0.160