PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-16:27:50
G03     210.6          58.8               11.6 +/-    0.51      13.3 +/-    0.51  0.160 / 0.380
G07     254.9          13.1               11.0 +/-    2.31      28.6 +/-    2.31  0.190 / 0.280
G09     308.8          25.2               10.0 +/-    2.36      19.5 +/-    2.36  0.030 / 0.050
G14     106.9          10.2               11.0 +/-    2.00      30.5 +/-    2.00  0.030 / 0.050
G16     100.8          64.1               10.2 +/-    0.94      11.2 +/-    0.94  0.080 / 0.070
G22     185.8          41.7               11.0 +/-    1.03      15.6 +/-    1.03  0.060 / 0.070
G23     332.0          60.7               10.5 +/-    0.77      11.9 +/-    0.77  0.050 / 0.030
G26     55.0           44.0               11.2 +/-    1.00      15.3 +/-    1.00  0.050 / 0.040
G31     58.4           10.7                9.7 +/-    4.11      26.5 +/-    4.11  0.150 / 0.210