PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-01:57:40
G01     303.9          35.4                4.1 +/-    0.95       6.4 +/-    0.95  0.050 / 0.070
G10     109.8          37.0                5.5 +/-    0.69       8.4 +/-    0.69  0.050 / 0.060
G11     276.7          28.1                5.8 +/-    1.35      10.5 +/-    1.35  0.080 / 0.110
G14     2.5            65.5                5.0 +/-    0.67       5.4 +/-    0.67  0.060 / 0.140
G18     269.8          50.4                6.1 +/-    0.69       7.7 +/-    0.69  0.050 / 0.050
G20     122.6          11.5                4.3 +/-    1.81      11.5 +/-    1.81  0.040 / 0.060
G22     310.9          28.2                4.3 +/-    0.80       7.9 +/-    0.80  0.060 / 0.170
G25     76.6           16.9                3.1 +/-    1.90       7.5 +/-    1.90  0.080 / 0.200
G31     160.2          69.5                4.9 +/-    1.05       5.2 +/-    1.05  0.060 / 0.120
G32     41.1           48.9                3.7 +/-    0.47       4.8 +/-    0.47  0.050 / 0.090