PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-02:12:40
G01     314.2          26.3                9.4 +/-    1.44      17.9 +/-    1.44  0.040 / 0.050
G10     93.8           47.9               10.0 +/-    1.02      13.0 +/-    1.02  0.040 / 0.040
G11     291.4          28.1                8.2 +/-    1.06      14.9 +/-    1.06  0.050 / 0.070
G14     335.3          70.5                9.6 +/-    0.53      10.1 +/-    0.53  0.050 / 0.030
G18     110.0          22.1               10.0 +/-    1.04      20.9 +/-    1.04  0.140 / 0.180
G22     305.3          17.6                8.0 +/-    1.94      18.6 +/-    1.94  0.100 / 0.140
G25     88.8           12.9                9.1 +/-    1.19      23.8 +/-    1.19  0.130 / 0.210
G31     175.4          51.9               13.6 +/-    0.74      16.7 +/-    0.74  0.110 / 0.170
G32     19.6           61.8                9.9 +/-    0.93      11.1 +/-    0.93  0.040 / 0.040