PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-02:27:40
G02     251.8          79.2                5.8 +/-    0.54       5.9 +/-    0.54  0.040 / 0.050
G05     169.8          19.0               10.2 +/-    1.59      23.0 +/-    1.59  0.070 / 0.060
G06     40.1           56.9                5.1 +/-    0.79       6.0 +/-    0.79  0.030 / 0.040
G12     321.3          53.4                7.3 +/-    1.53       8.9 +/-    1.53  0.030 / 0.040
G17     71.0           24.3                5.5 +/-    0.55      10.9 +/-    0.55  0.080 / 0.120
G19     59.0           37.7                4.4 +/-    0.54       6.7 +/-    0.54  0.070 / 0.110
G24     243.4          33.6               10.3 +/-    1.16      16.8 +/-    1.16  0.050 / 0.260
G25     317.0          13.3                5.5 +/-    2.86      14.3 +/-    2.86  0.060 / 0.230