PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-02:57:40
G02     347.5          78.8                7.3 +/-    0.56       7.4 +/-    0.56  0.030 / 0.030
G05     163.4          33.4                8.7 +/-    0.96      14.2 +/-    0.96  0.030 / 0.030
G06     41.2           41.8                4.5 +/-    0.83       6.4 +/-    0.83  0.050 / 0.090
G12     313.3          69.3                7.6 +/-    0.82       8.1 +/-    0.82  0.060 / 0.080
G17     83.8           15.3                6.3 +/-    1.53      15.5 +/-    1.53  0.040 / 0.050
G19     73.8           28.4                6.1 +/-    1.44      11.0 +/-    1.44  0.050 / 0.050
G24     229.6          23.6               10.8 +/-    3.01      21.9 +/-    3.01  0.260 / 0.240
G25     317.5          26.9                7.0 +/-    1.41      13.1 +/-    1.41  0.200 / 0.250