PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-13:57:40
G01     43.4           19.0               11.9 +/-    3.57      26.8 +/-    3.57  0.100 / 0.280
G06     176.4          34.4               14.7 +/-    1.05      23.5 +/-    1.05  0.090 / 0.280
G13     243.5          24.8               13.5 +/-    2.40      26.5 +/-    2.40  0.170 / 0.270
G15     276.4          13.6                8.8 +/-    1.47      22.6 +/-    1.47  0.320 / 0.280
G17     0.3            72.0               12.5 +/-    0.35      13.0 +/-    0.35  0.080 / 0.100
G19     270.1          68.8               12.1 +/-    0.63      12.8 +/-    0.63  0.100 / 0.090
G24     318.3          14.4                6.2 +/-    3.83      15.7 +/-    3.83  0.040 / 0.020
G28     66.7           48.5               12.2 +/-    1.40      15.7 +/-    1.40  0.040 / 0.030
G30     153.6          33.2               14.1 +/-    1.12      23.2 +/-    1.12  0.110 / 0.190