PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-18:12:30
G02     26.3           61.2               18.7 +/-    0.67      21.1 +/-    0.67  0.050 / 0.050
G05     155.9          54.5               22.4 +/-    0.56      26.9 +/-    0.56  0.050 / 0.050
G06     51.0           20.5               16.7 +/-    2.85      36.4 +/-    2.85  0.030 / 0.030
G12     209.2          73.2               17.6 +/-    0.62      18.3 +/-    0.62  0.030 / 0.020
G19     96.8           11.4               19.6 +/-    1.90      53.0 +/-    1.90  0.140 / 0.260
G20     197.6          21.6               23.8 +/-    2.13      50.4 +/-    2.13  0.150 / 0.230
G25     301.0          53.1               16.9 +/-    0.77      20.6 +/-    0.77  0.040 / 0.040
G29     305.1          26.9               17.0 +/-    1.01      31.8 +/-    1.01  0.030 / 0.040