PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/09-01:43:00
G02     226.6          71.1               10.6 +/-    0.58      11.1 +/-    0.58  0.040 / 0.050
G05     173.5          11.1                4.8 +/-   31.73      13.1 +/-   31.73  0.030 / 0.060
G06     44.1           66.0                9.6 +/-    0.54      10.4 +/-    0.54  0.130 / 0.320
G12     320.8          44.3                9.9 +/-    0.65      13.5 +/-    0.65  0.200 / 0.370
G17     62.9           30.1                9.3 +/-    0.68      16.2 +/-    0.68  0.070 / 0.090
G19     49.3           43.7                9.5 +/-    1.39      13.0 +/-    1.39  0.060 / 0.110
G24     253.7          38.4               12.0 +/-    1.14      17.9 +/-    1.14  0.030 / 0.030