PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-19:43:10
G02     262.8          79.0               10.8 +/-    0.39      11.0 +/-    0.39  0.110 / 0.170
G05     169.2          21.9               15.3 +/-    2.13      32.3 +/-    2.13  0.130 / 0.180
G06     40.3           50.4               10.4 +/-    0.66      13.0 +/-    0.66  0.060 / 0.160
G12     321.5          61.7                8.5 +/-    1.16       9.5 +/-    1.16  0.070 / 0.160
G17     76.0           18.9                9.4 +/-    1.33      21.4 +/-    1.33  0.040 / 0.050
G19     61.4           37.0                9.0 +/-    1.14      13.8 +/-    1.14  0.040 / 0.040
G24     237.6          30.8               12.2 +/-    1.98      21.0 +/-    1.98  0.190 / 0.290
G25     317.5          17.9                8.5 +/-    3.21      19.6 +/-    3.21  0.180 / 0.210