PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-04:13:00
G01     251.7          35.6               10.0 +/-    2.18      15.8 +/-    2.18  0.050 / 0.100
G03     316.0          40.7                7.7 +/-    0.82      11.1 +/-    0.82  0.060 / 0.110
G11     236.0          13.3               11.2 +/-    2.77      29.1 +/-    2.77  0.060 / 0.110
G14     60.8           39.9                7.1 +/-    3.36      10.4 +/-    3.36  0.060 / 0.110
G16     165.5          16.1               10.5 +/-    2.43      25.5 +/-    2.43  0.070 / 0.080
G22     306.1          64.9                6.8 +/-    1.39       7.4 +/-    1.39  0.050 / 0.090
G23     285.3          17.5                8.2 +/-    3.91      19.1 +/-    3.91  0.100 / 0.230
G26     140.7          36.1               10.7 +/-    1.10      16.6 +/-    1.10  0.070 / 0.240
G31     40.4           61.7                8.0 +/-    3.12       9.0 +/-    3.12  0.050 / 0.050
G32     75.5           25.6                7.5 +/-    2.56      14.4 +/-    2.56  0.040 / 0.040