PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-21:57:30
G08     291.9          23.7               16.1 +/-    0.85      32.4 +/-    0.85  0.050 / 0.070
G10     7.9            63.0               16.7 +/-    0.75      18.5 +/-    0.75  0.050 / 0.090
G14     229.5          45.9               22.0 +/-    2.11      29.3 +/-    2.11  0.090 / 0.150
G18     317.6          10.8               -7.9 +/-   19.82     -21.7 +/-   19.82  0.130 / 0.170
G20     65.1           52.4               16.3 +/-    1.06      20.1 +/-    1.06  0.080 / 0.140
G21     146.4          40.0               19.8 +/-    1.56      28.8 +/-    1.56  0.100 / 0.130
G24     53.9           23.6               13.9 +/-    2.46      28.0 +/-    2.46  0.110 / 0.180
G32     246.2          68.5               18.9 +/-    0.65      20.2 +/-    0.65  0.110 / 0.180