PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-16:42:40
G02     49.7           41.8                6.2 +/-    0.69       8.8 +/-    0.69  0.220 / 0.390
G05     85.1           70.3                7.9 +/-    0.42       8.3 +/-    0.42  0.250 / 0.480
G12     184.5          41.0                9.5 +/-    1.14      13.6 +/-    1.14  0.050 / 0.050
G21     264.1          11.6                1.5 +/-   16.80       4.2 +/-   16.80  0.050 / 0.050
G25     248.1          57.3                7.4 +/-    0.91       8.7 +/-    0.91  0.040 / 0.070
G29     321.9          45.3                7.1 +/-    0.65       9.6 +/-    0.65  0.040 / 0.060