PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/23-00:58:00
G08     296.0          23.3                8.5 +/-    1.55      17.3 +/-    1.55  0.050 / 0.050
G10     358.9          62.7                7.6 +/-    0.55       8.4 +/-    0.55  0.050 / 0.060
G14     226.3          41.7               14.0 +/-    1.35      19.8 +/-    1.35  0.060 / 0.070
G20     339.7          62.7                8.9 +/-    0.59       9.8 +/-    0.59  0.050 / 0.070
G21     144.5          45.7               10.8 +/-    1.41      14.4 +/-    1.41  0.040 / 0.030
G24     58.5           26.1                9.1 +/-    2.03      17.4 +/-    2.03  0.030 / 0.030
G27     259.3          33.6               10.1 +/-    0.94      16.5 +/-    0.94  0.080 / 0.120
G32     239.6          66.3               10.5 +/-    1.08      11.3 +/-    1.08  0.070 / 0.100