PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-04:12:50
G01     251.7          35.6               11.4 +/-    2.15      17.9 +/-    2.15  0.030 / 0.030
G03     316.0          40.7                7.5 +/-    0.89      10.8 +/-    0.89  0.030 / 0.030
G11     236.0          13.3               10.7 +/-    2.00      27.7 +/-    2.00  0.130 / 0.210
G14     60.8           39.9                6.8 +/-    1.37       9.9 +/-    1.37  0.100 / 0.160
G16     165.5          16.1                5.7 +/-   17.49      13.8 +/-   17.49  0.110 / 0.080
G22     306.1          64.9                9.1 +/-    0.79       9.9 +/-    0.79  0.080 / 0.080
G23     285.3          17.5               10.0 +/-    1.61      23.4 +/-    1.61  0.030 / 0.040
G26     140.7          36.1               11.5 +/-    1.30      17.9 +/-    1.30  0.030 / 0.040
G31     40.4           61.7                8.0 +/-    0.38       9.0 +/-    0.38  0.060 / 0.060
G32     75.5           25.6                6.7 +/-    2.85      12.9 +/-    2.85  0.040 / 0.070