PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/01-03:42:50
G08     287.4          23.5               10.8 +/-    1.36      21.8 +/-    1.36  0.030 / 0.030
G10     13.7           63.3                9.8 +/-    0.87      10.8 +/-    0.87  0.030 / 0.030
G14     234.3          51.7               10.4 +/-    2.52      12.9 +/-    2.52  0.050 / 0.090
G18     66.7           50.4                6.3 +/-    1.77       8.0 +/-    1.77  0.040 / 0.060
G21     147.9          36.4                8.7 +/-    1.20      13.5 +/-    1.20  0.020 / 0.020
G24     53.8           24.9                6.4 +/-    3.58      12.5 +/-    3.58  0.040 / 0.030
G27     248.6          29.2               10.8 +/-    1.38      19.2 +/-    1.38  0.200 / 0.130
G32     254.2          69.8                7.7 +/-    0.66       8.2 +/-    0.66  0.210 / 0.200