PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-00:57:40
G02     341.7          79.4                7.4 +/-    0.73       7.5 +/-    0.73  0.030 / 0.040
G05     163.8          32.8               12.3 +/-    0.61      20.3 +/-    0.61  0.030 / 0.040
G06     41.3           41.5                6.5 +/-    0.55       9.2 +/-    0.55  0.050 / 0.100
G12     313.8          69.6                7.3 +/-    0.66       7.7 +/-    0.66  0.060 / 0.100
G17     83.3           15.6                8.3 +/-    2.03      20.4 +/-    2.03  0.120 / 0.210
G19     72.9           29.3                8.7 +/-    0.81      15.5 +/-    0.81  0.130 / 0.270
G24     229.7          23.9               12.7 +/-    2.35      25.5 +/-    2.35  0.100 / 0.130
G25     317.6          26.5                6.4 +/-    1.79      12.2 +/-    1.79  0.110 / 0.120