PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-01:27:50
G02     52.9           37.6               10.7 +/-    0.55      16.2 +/-    0.55  0.050 / 0.050
G05     72.5           66.2               13.8 +/-    0.50      15.0 +/-    0.50  0.050 / 0.070
G12     188.3          44.2               17.4 +/-    2.94      23.7 +/-    2.94  0.230 / 0.480
G21     265.1          12.7               15.4 +/-   13.16      40.5 +/-   13.16  0.210 / 0.450
G25     250.7          56.8               15.3 +/-    0.98      17.9 +/-    0.98  0.040 / 0.070
G29     325.5          49.8               15.5 +/-    0.93      19.6 +/-    0.93  0.060 / 0.070