PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-05:28:00
G01     225.0          15.9                7.9 +/-    3.65      19.3 +/-    3.65  0.040 / 0.110
G03     287.0          66.5                6.6 +/-    0.72       7.1 +/-    0.72  0.050 / 0.090
G09     295.7          10.7              -12.2 +/-   20.18     -33.4 +/-   20.18  0.350 / 0.310
G14     88.9           21.8                4.1 +/-    1.42       8.7 +/-    1.42  0.350 / 0.210
G16     149.2          45.5                9.4 +/-    0.70      12.6 +/-    0.70  0.080 / 0.080
G22     213.8          69.8                6.9 +/-    0.71       7.3 +/-    0.71  0.090 / 0.100
G23     307.5          36.9                5.5 +/-    0.78       8.4 +/-    0.78  0.030 / 0.030
G26     100.1          55.4                7.8 +/-    0.69       9.2 +/-    0.69  0.030 / 0.040
G31     45.0           32.9                3.8 +/-    1.28       6.3 +/-    1.28  0.050 / 0.060