PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-03:27:50
G01     242.0          30.3                7.0 +/-    1.22      12.3 +/-    1.22  0.040 / 0.040
G03     313.3          50.7                3.7 +/-    0.75       4.6 +/-    0.75  0.030 / 0.040
G14     68.4           36.3                3.6 +/-    0.60       5.5 +/-    0.60  0.090 / 0.150
G16     157.2          27.2                6.1 +/-    1.05      11.4 +/-    1.05  0.090 / 0.140
G18     213.8          20.3                7.1 +/-    1.53      15.5 +/-    1.53  0.060 / 0.130
G22     288.3          72.1                4.1 +/-    1.10       4.2 +/-    1.10  0.050 / 0.140
G23     292.8          24.0                5.6 +/-    1.00      11.2 +/-    1.00  0.070 / 0.180
G26     126.0          45.0                7.2 +/-    0.69       9.7 +/-    0.69  0.070 / 0.200
G31     40.8           49.1                2.2 +/-    0.73       2.8 +/-    0.73  0.070 / 0.200
G32     84.9           16.7                4.2 +/-    1.46      10.0 +/-    1.46  0.070 / 0.190