PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/18-01:12:40
G02     232.4          73.8               11.6 +/-    0.30      12.0 +/-    0.30  0.030 / 0.070
G05     172.2          13.6               19.5 +/-    1.83      50.2 +/-    1.83  0.030 / 0.050
G06     42.1           62.6               10.3 +/-    0.46      11.5 +/-    0.46  0.160 / 0.210
G12     321.3          47.6               11.0 +/-    0.41      14.3 +/-    0.41  0.180 / 0.160
G19     52.4           41.9                9.8 +/-    0.95      13.8 +/-    0.95  0.030 / 0.030
G24     249.9          37.0               12.8 +/-    0.55      19.6 +/-    0.55  0.030 / 0.030