PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/26-17:27:30
G02     243.6          75.2               14.0 +/-    0.70      14.4 +/-    0.70  0.040 / 0.060
G05     174.8          14.6               15.1 +/-    3.27      38.0 +/-    3.27  0.040 / 0.050
G06     40.4           56.7               13.2 +/-    0.87      15.4 +/-    0.87  0.080 / 0.190
G12     321.6          54.5               13.4 +/-    0.94      16.0 +/-    0.94  0.100 / 0.200
G17     74.3           18.7               12.9 +/-    0.86      29.2 +/-    0.86  0.060 / 0.110
G19     61.1           35.6               12.9 +/-    0.67      20.2 +/-    0.67  0.060 / 0.120
G24     245.1          34.0               14.4 +/-    0.93      23.3 +/-    0.93  0.090 / 0.310
G25     317.2          17.9               13.5 +/-    1.92      31.4 +/-    1.92  0.080 / 0.290