PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-14:57:50
G02     224.0          67.2               12.2 +/-    0.79      13.1 +/-    0.79  0.070 / 0.110
G06     45.7           68.5               11.1 +/-    0.62      11.9 +/-    0.62  0.070 / 0.100
G12     320.7          43.1               10.2 +/-    0.46      14.1 +/-    0.46  0.040 / 0.050
G17     65.7           25.2               10.4 +/-    1.15      20.2 +/-    1.15  0.030 / 0.050
G19     50.4           42.4               10.2 +/-    0.94      14.2 +/-    0.94  0.070 / 0.110
G24     257.3          39.1               12.4 +/-    2.59      18.3 +/-    2.59  0.070 / 0.080