PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-02:57:30
G08     287.4          23.5                8.0 +/-    1.14      16.1 +/-    1.14  0.040 / 0.100
G10     13.7           63.3                5.6 +/-    0.52       6.2 +/-    0.52  0.050 / 0.100
G14     234.3          51.7               10.0 +/-    0.86      12.3 +/-    0.86  0.070 / 0.110
G18     67.0           50.2                6.2 +/-    0.85       7.8 +/-    0.85  0.050 / 0.110
G21     147.8          36.2                7.4 +/-    0.78      11.5 +/-    0.78  0.030 / 0.030
G24     53.8           24.9                4.9 +/-    0.59       9.7 +/-    0.59  0.030 / 0.040
G27     248.6          29.2                7.9 +/-    1.55      14.0 +/-    1.55  0.040 / 0.080
G32     253.7          69.4                7.4 +/-    0.67       7.8 +/-    0.67  0.050 / 0.070