PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-00:28:10
G08     296.2          23.1               15.6 +/-    0.86      31.8 +/-    0.86  0.020 / 0.020
G10     355.7          62.6               13.7 +/-    0.68      15.3 +/-    0.68  0.020 / 0.020
G14     226.6          44.2               18.5 +/-    2.17      25.3 +/-    2.17  0.060 / 0.110
G18     57.1           53.8               15.9 +/-    0.93      19.2 +/-    0.93  0.070 / 0.080
G21     143.5          43.5               17.3 +/-    0.81      23.8 +/-    0.81  0.140 / 0.100
G24     61.6           28.3               14.4 +/-    1.49      26.1 +/-    1.49  0.090 / 0.110
G27     257.4          33.5               18.8 +/-    1.35      30.7 +/-    1.35  0.050 / 0.070
G32     237.4          61.3               17.5 +/-    1.66      19.6 +/-    1.66  0.050 / 0.060