PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-16:27:10
G02     38.9           50.6                9.8 +/-    0.85      12.3 +/-    0.85  0.040 / 0.040
G05     125.2          68.7               10.5 +/-    0.98      11.2 +/-    0.98  0.040 / 0.040
G12     187.4          54.5               11.2 +/-    0.73      13.4 +/-    0.73  0.040 / 0.050
G25     274.5          59.4                9.4 +/-    1.64      10.8 +/-    1.64  0.030 / 0.050
G29     313.9          35.1                8.7 +/-    1.65      13.7 +/-    1.65  0.020 / 0.030