PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-16:12:30
G03     206.6          54.8               14.8 +/-    0.53      17.6 +/-    0.53  0.040 / 0.050
G07     258.2          15.8               12.3 +/-    2.15      29.9 +/-    2.15  0.040 / 0.050
G09     310.9          28.7               10.7 +/-    0.98      19.3 +/-    0.98  0.030 / 0.030
G16     88.9           64.1               12.9 +/-    0.93      14.2 +/-    0.93  0.030 / 0.030
G22     184.2          36.9               13.7 +/-    0.88      20.9 +/-    0.88  0.050 / 0.090
G23     337.2          64.6               12.8 +/-    0.67      14.0 +/-    0.67  0.060 / 0.100
G26     51.4           40.6               12.1 +/-    0.74      17.5 +/-    0.74  0.080 / 0.230
G27     132.4          12.0               14.9 +/-    2.70      39.9 +/-    2.70  0.110 / 0.210