PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-15:28:10
G02     206.3          40.9               17.0 +/-    1.37      24.3 +/-    1.37  0.150 / 0.190
G06     143.6          76.3               16.7 +/-    0.69      17.1 +/-    0.69  0.110 / 0.160
G12     311.9          21.5               14.7 +/-    1.35      31.3 +/-    1.35  0.060 / 0.090
G17     45.4           41.3               12.6 +/-    1.59      17.9 +/-    1.59  0.050 / 0.070
G19     20.2           59.0               14.9 +/-    0.94      17.0 +/-    0.94  0.030 / 0.090
G24     290.8          40.2               14.1 +/-    6.61      20.4 +/-    6.61  0.040 / 0.070
G28     110.2          25.4               13.2 +/-    1.82      25.5 +/-    1.82  0.030 / 0.030