PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-14:57:50
G02     229.6          70.9               15.8 +/-    0.81      16.6 +/-    0.81  0.410 / 0.330
G06     42.7           64.9               14.2 +/-    0.50      15.5 +/-    0.50  0.060 / 0.110
G12     321.2          46.7               12.2 +/-    0.72      16.1 +/-    0.72  0.060 / 0.100
G17     68.7           23.0               12.6 +/-    3.54      25.9 +/-    3.54  0.050 / 0.070
G19     54.2           40.0               12.6 +/-    2.54      18.3 +/-    2.54  0.040 / 0.040
G24     252.7          37.5               14.6 +/-    2.25      22.2 +/-    2.25  0.050 / 0.120
G25     315.9          10.7              -13.3 +/-   24.63     -36.5 +/-   24.63  0.070 / 0.120