PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-16:58:00
G02     263.3          79.2               15.1 +/-    0.50      15.3 +/-    0.50  0.030 / 0.050
G05     173.1          18.9               21.8 +/-    1.88      49.2 +/-    1.88  0.030 / 0.050
G06     40.0           52.1               12.4 +/-    0.46      15.3 +/-    0.46  0.080 / 0.110
G12     320.7          59.2               13.4 +/-    0.91      15.3 +/-    0.91  0.100 / 0.130
G17     78.3           15.9               12.9 +/-    1.86      31.5 +/-    1.86  0.100 / 0.250
G19     65.7           32.6               13.3 +/-    0.94      22.1 +/-    0.94  0.090 / 0.180
G24     240.1          31.0               19.5 +/-    1.21      33.4 +/-    1.21  0.030 / 0.050
G25     317.7          21.8               11.5 +/-    1.61      24.2 +/-    1.61  0.030 / 0.060