PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-03:58:00
G08     303.4          21.1                7.2 +/-    2.48      15.5 +/-    2.48  0.100 / 0.090
G10     346.6          61.8                6.8 +/-    0.75       7.6 +/-    0.75  0.080 / 0.110
G14     222.5          34.8               13.2 +/-    1.82      20.9 +/-    1.82  0.110 / 0.160
G20     34.1           62.7               11.5 +/-    0.68      12.7 +/-    0.68  0.070 / 0.150
G21     140.7          50.9               10.5 +/-    0.98      13.0 +/-    0.98  0.080 / 0.080
G24     64.8           28.3                5.9 +/-    0.65      10.8 +/-    0.65  0.060 / 0.120
G27     265.6          35.7               10.3 +/-    1.18      16.2 +/-    1.18  0.040 / 0.070
G32     231.2          61.3               10.5 +/-    0.86      11.7 +/-    0.86  0.050 / 0.070