PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-13:42:10
G02     224.4          64.1                7.3 +/-    0.96       8.1 +/-    0.96  0.050 / 0.080
G06     45.3           66.4                5.9 +/-    0.70       6.4 +/-    0.70  0.060 / 0.080
G12     321.2          45.8                6.3 +/-    0.88       8.4 +/-    0.88  0.040 / 0.050
G17     64.6           26.0                5.5 +/-    2.69      10.4 +/-    2.69  0.050 / 0.050
G19     43.5           47.6                5.0 +/-    0.75       6.5 +/-    0.75  0.030 / 0.030
G24     251.7          39.2                7.8 +/-    3.31      11.5 +/-    3.31  0.030 / 0.030