PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/26-13:57:20
G02     28.7           58.6                5.5 +/-    0.93       6.4 +/-    0.93  0.030 / 0.030
G05     150.2          58.6                8.2 +/-    0.45       9.4 +/-    0.45  0.030 / 0.030
G06     52.6           17.1                5.6 +/-    2.83      13.3 +/-    2.83  0.080 / 0.050
G12     198.5          69.4                6.1 +/-    0.64       6.4 +/-    0.64  0.040 / 0.050
G19     97.1           13.8                6.8 +/-    2.27      17.4 +/-    2.27  0.030 / 0.030
G25     295.9          55.5                7.5 +/-    3.98       8.9 +/-    3.98  0.030 / 0.040
G29     305.9          26.5                6.0 +/-    1.40      11.3 +/-    1.40  0.130 / 0.230