PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-06:42:40
G01     226.7          18.9                6.3 +/-    2.15      14.3 +/-    2.15  0.030 / 0.030
G03     293.2          66.8                4.9 +/-    0.73       5.3 +/-    0.73  0.030 / 0.030
G14     83.4           26.6                3.0 +/-    1.45       5.7 +/-    1.45  0.220 / 0.500
G16     148.0          42.0                5.3 +/-    1.88       7.5 +/-    1.88  0.310 / 0.360
G22     225.3          72.3                6.2 +/-    0.71       6.5 +/-    0.71  0.110 / 0.150
G23     307.9          39.3                4.4 +/-    1.26       6.5 +/-    1.26  0.090 / 0.190
G26     102.3          53.5                5.3 +/-    0.67       6.4 +/-    0.67  0.050 / 0.080
G31     45.0           32.9                2.7 +/-    0.94       4.5 +/-    0.94  0.040 / 0.090