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               11.1 +/-    1.06      22.5 +/-    1.06  0.050 / 0.100
G10     13.7           63.3                7.6 +/-    0.63       8.4 +/-    0.63  0.050 / 0.100
G14     234.3          51.7               10.9 +/-    0.78      13.5 +/-    0.78  0.070 / 0.100
G18     66.7           50.4                6.8 +/-    1.31       8.5 +/-    1.31  0.050 / 0.090
G21     147.9          36.4               10.0 +/-    0.56      15.5 +/-    0.56  0.030 / 0.030
G24     53.8           24.9                5.1 +/-    0.64       9.9 +/-    0.64  0.040 / 0.030
G27     248.6          29.2                9.8 +/-    1.66      17.4 +/-    1.66  0.040 / 0.080
G32     254.2          69.8                8.5 +/-    0.89       8.9 +/-    0.89  0.050 / 0.070