PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-05:28:00
G01     227.6          18.4                5.0 +/-    2.90      11.4 +/-    2.90  0.060 / 0.120
G03     295.0          64.2                7.3 +/-    0.64       8.0 +/-    0.64  0.090 / 0.110
G14     85.7           24.0                5.0 +/-    1.71      10.0 +/-    1.71  0.250 / 0.310
G16     151.9          41.8                8.7 +/-    0.63      12.2 +/-    0.63  0.100 / 0.180
G22     223.2          72.6                7.3 +/-    0.36       7.7 +/-    0.36  0.030 / 0.030
G23     304.8          34.3                4.4 +/-    1.54       7.1 +/-    1.54  0.030 / 0.030
G26     106.8          54.3                7.7 +/-    0.59       9.2 +/-    0.59  0.050 / 0.070
G31     43.6           36.0                5.9 +/-    1.16       9.1 +/-    1.16  0.040 / 0.070