PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-02:12:30
G02     219.8          66.4                8.0 +/-    0.69       8.6 +/-    0.69  0.040 / 0.060
G06     49.8           71.3                4.9 +/-    0.32       5.1 +/-    0.32  0.040 / 0.070
G12     319.6          39.3                3.8 +/-    0.70       5.6 +/-    0.70  0.040 / 0.060
G17     59.0           32.7                4.3 +/-    1.04       7.1 +/-    1.04  0.050 / 0.050
G19     44.0           46.7                5.0 +/-    0.79       6.5 +/-    0.79  0.130 / 0.090
G24     260.2          40.4                7.2 +/-    4.14      10.3 +/-    4.14  0.080 / 0.110
G28     125.6          9.9                 6.8 +/-    2.42      19.0 +/-    2.42  0.250 / 0.440