PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-15:57:50
G02     221.9          62.4                8.2 +/-    0.78       9.1 +/-    0.78  0.060 / 0.070
G06     47.1           66.7                7.8 +/-    0.43       8.4 +/-    0.43  0.060 / 0.090
G12     321.8          46.4                6.1 +/-    0.82       8.0 +/-    0.82  0.040 / 0.050
G17     63.0           27.2                5.6 +/-    0.70      10.4 +/-    0.70  0.050 / 0.050
G19     41.7           48.5                7.7 +/-    0.34       9.9 +/-    0.34  0.030 / 0.030
G24     255.5          40.1                8.2 +/-    0.99      11.9 +/-    0.99  0.020 / 0.040