PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/28-00:13:00
G10     291.0          49.0               12.8 +/-    1.07      16.3 +/-    1.07  0.050 / 0.050
G14     209.1          9.9                -8.4 +/-   19.08     -23.5 +/-   19.08  0.050 / 0.050
G15     47.1           32.9               10.3 +/-    0.36      17.0 +/-    0.36  0.060 / 0.110
G18     347.3          66.6               11.7 +/-    0.84      12.6 +/-    0.84  0.060 / 0.160
G20     69.0           19.7               12.5 +/-    0.85      27.6 +/-    0.85  0.030 / 0.060
G21     83.8           75.6               15.5 +/-    0.87      16.0 +/-    0.87  0.030 / 0.050
G24     103.2          24.8               15.7 +/-    0.60      30.8 +/-    0.60  0.180 / 0.820
G27     302.9          33.4               14.3 +/-    1.21      23.4 +/-    1.21  0.060 / 0.100
G32     209.7          26.5               19.8 +/-    1.66      37.4 +/-    1.66  0.060 / 0.090