PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-06:13:10
G01     240.9          29.5                7.6 +/-    1.33      13.5 +/-    1.33  0.120 / 0.130
G03     312.9          50.3                7.6 +/-    0.93       9.5 +/-    0.93  0.100 / 0.150
G14     71.0           33.6                5.0 +/-    1.28       8.1 +/-    1.28  0.030 / 0.020
G16     160.1          26.3                7.9 +/-    1.64      14.9 +/-    1.64  0.030 / 0.030
G22     284.9          73.6                7.9 +/-    0.78       8.2 +/-    0.78  0.110 / 0.120
G23     293.0          23.8                7.4 +/-    1.29      14.8 +/-    1.29  0.100 / 0.170
G26     129.4          44.9                8.6 +/-    0.61      11.7 +/-    0.61  0.170 / 0.170
G31     39.9           50.1                5.9 +/-    0.71       7.4 +/-    0.71  0.070 / 0.130
G32     84.5           18.5                5.5 +/-    2.27      12.4 +/-    2.27  0.060 / 0.110