PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-02:58:00
G01     317.0          22.0                8.3 +/-    3.24      17.5 +/-    3.24  0.040 / 0.030
G10     86.1           51.4                9.1 +/-    1.32      11.2 +/-    1.32  0.040 / 0.040
G11     297.0          26.7                6.5 +/-    1.39      12.3 +/-    1.39  0.040 / 0.020
G14     318.2          71.5                8.9 +/-    0.68       9.3 +/-    0.68  0.030 / 0.020
G18     105.5          26.4                7.7 +/-    1.18      14.6 +/-    1.18  0.180 / 0.260
G22     302.8          13.9                6.4 +/-    1.76      16.3 +/-    1.76  0.090 / 0.170
G25     93.4           10.5                8.7 +/-    1.96      24.1 +/-    1.96  0.100 / 0.170
G31     176.2          46.2               11.7 +/-    0.85      15.6 +/-    0.85  0.080 / 0.180
G32     11.6           65.3                7.2 +/-    0.51       7.9 +/-    0.51  0.040 / 0.050