PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-18:12:50
G02     24.2           62.7               16.5 +/-    0.41      18.4 +/-    0.41  0.040 / 0.070
G05     157.5          52.6               19.5 +/-    0.63      23.9 +/-    0.63  0.050 / 0.060
G06     50.1           21.9               12.7 +/-    2.67      26.7 +/-    2.67  0.020 / 0.030
G12     213.9          74.9               16.7 +/-    0.96      17.2 +/-    0.96  0.030 / 0.030
G19     95.3           12.5               15.5 +/-    1.71      41.0 +/-    1.71  0.030 / 0.040
G20     197.5          19.9               22.9 +/-    2.80      50.5 +/-    2.80  0.030 / 0.040
G25     303.3          51.8               15.5 +/-    3.68      19.1 +/-    3.68  0.150 / 0.230
G29     303.8          25.6               15.8 +/-    1.34      30.4 +/-    1.34  0.290 / 0.250