PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-14:12:50
G01     46.1           21.9                6.5 +/-    0.65      13.7 +/-    0.65  0.070 / 0.090
G06     177.1          30.1               10.5 +/-    1.85      18.4 +/-    1.85  0.060 / 0.070
G13     247.5          27.4                7.6 +/-    1.94      14.1 +/-    1.94  0.200 / 0.340
G15     280.7          14.6                6.5 +/-    1.53      16.4 +/-    1.53  0.210 / 0.330
G17     349.2          75.3                8.1 +/-    0.54       8.3 +/-    0.54  0.090 / 0.210
G19     259.2          66.1                6.7 +/-    0.94       7.3 +/-    0.94  0.100 / 0.200
G24     319.1          10.9              -10.8 +/-   29.17     -29.7 +/-   29.17  0.070 / 0.180
G28     60.7           50.4                7.6 +/-    0.68       9.5 +/-    0.68  0.080 / 0.200
G30     152.1          37.7                9.5 +/-    0.71      14.4 +/-    0.71  0.030 / 0.030