PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-01:12:00
G02     47.2           42.6               12.8 +/-    0.82      17.8 +/-    0.82  0.040 / 0.050
G05     92.4           68.8               12.6 +/-    0.59      13.4 +/-    0.59  0.040 / 0.070
G12     190.8          52.1               15.8 +/-    1.75      19.5 +/-    1.75  0.050 / 0.050
G25     265.5          58.6               15.0 +/-    1.65      17.2 +/-    1.65  0.040 / 0.050
G29     320.4          43.6               14.7 +/-    1.71      20.3 +/-    1.71  0.050 / 0.090