PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/25-16:57:50
G02     28.7           59.4               14.2 +/-    0.90      16.3 +/-    0.90  0.050 / 0.050
G05     152.8          56.4               24.5 +/-    0.31      28.7 +/-    0.31  0.060 / 0.050
G06     51.4           20.2               15.1 +/-    2.78      33.0 +/-    2.78  0.030 / 0.030
G12     208.0          72.3               12.8 +/-    0.40      13.4 +/-    0.40  0.020 / 0.030
G19     97.7           10.7               13.9 +/-    1.06      38.0 +/-    1.06  0.330 / 0.260
G20     197.9          22.4               16.3 +/-    1.71      33.7 +/-    1.71  0.240 / 0.360
G25     300.1          53.2               11.5 +/-    1.16      13.9 +/-    1.16  0.040 / 0.030
G29     306.4          28.6               16.3 +/-    1.17      29.4 +/-    1.17  0.030 / 0.040