PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/08-02:28:00
G02     312.7          81.9                7.0 +/-    0.76       7.1 +/-    0.76  0.030 / 0.030
G05     166.1          27.5               10.4 +/-    2.13      19.3 +/-    2.13  0.030 / 0.030
G06     40.1           47.5                5.9 +/-    1.08       7.6 +/-    1.08  0.030 / 0.040
G12     318.7          63.1                7.9 +/-    0.96       8.7 +/-    0.96  0.030 / 0.050
G17     78.6           19.1                7.2 +/-    1.38      16.3 +/-    1.38  0.080 / 0.090
G19     68.0           32.2                7.0 +/-    1.64      11.8 +/-    1.64  0.060 / 0.090
G24     234.6          27.8               10.6 +/-    1.28      19.5 +/-    1.28  0.290 / 0.220
G25     317.8          21.4                7.0 +/-    2.47      14.9 +/-    2.47  0.300 / 0.240