PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-15:12:30
G02     235.7          73.6               11.2 +/-    0.32      11.6 +/-    0.32  0.120 / 0.240
G05     175.3          12.2               10.5 +/-    3.28      28.0 +/-    3.28  0.100 / 0.240
G06     41.2           61.6               10.0 +/-    0.43      11.2 +/-    0.43  0.070 / 0.120
G12     321.5          49.8               11.4 +/-    0.62      14.4 +/-    0.62  0.080 / 0.080
G17     71.2           21.1                9.8 +/-    0.94      21.0 +/-    0.94  0.030 / 0.040
G19     57.3           38.1               10.2 +/-    0.81      15.3 +/-    0.81  0.030 / 0.040
G24     249.1          36.0               12.5 +/-    2.00      19.5 +/-    2.00  0.210 / 0.360
G25     316.6          13.4                9.9 +/-    2.38      25.5 +/-    2.38  0.230 / 0.360