PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-04:27:40
G01     314.1          26.4                5.9 +/-    1.71      11.2 +/-    1.71  0.040 / 0.020
G10     93.8           48.0                6.4 +/-    0.76       8.3 +/-    0.76  0.030 / 0.020
G11     290.8          28.6                6.1 +/-    0.90      10.9 +/-    0.90  0.100 / 0.150
G14     335.9          70.4                5.4 +/-    0.29       5.7 +/-    0.29  0.110 / 0.160
G18     109.7          23.0                6.3 +/-    1.79      13.0 +/-    1.79  0.130 / 0.190
G22     305.5          18.5                7.1 +/-    2.08      16.2 +/-    2.08  0.140 / 0.160
G25     87.4           12.7                5.8 +/-    2.02      15.3 +/-    2.02  0.040 / 0.040
G31     173.6          53.2                9.7 +/-    0.33      11.8 +/-    0.33  0.040 / 0.040
G32     21.8           60.9                6.4 +/-    0.94       7.3 +/-    0.94  0.030 / 0.040