PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-13:42:20
G02     51.1           40.1                2.1 +/-    0.58       3.1 +/-    0.58  0.040 / 0.050
G05     83.8           70.0                3.7 +/-    0.41       3.9 +/-    0.41  0.040 / 0.050
G12     186.1          42.6                4.7 +/-    2.13       6.6 +/-    2.13  0.230 / 0.530
G21     264.6          12.9                1.4 +/-    8.23       3.7 +/-    8.23  0.220 / 0.350
G25     244.0          57.4                4.8 +/-    0.71       5.6 +/-    0.71  0.040 / 0.060
G29     322.7          46.3                1.2 +/-    1.04       1.6 +/-    1.04  0.030 / 0.050