PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-01:12:30
G01     313.9          26.7                8.3 +/-    2.23      15.6 +/-    2.23  0.030 / 0.040
G10     94.6           47.5                7.1 +/-    0.78       9.2 +/-    0.78  0.030 / 0.040
G11     291.1          28.1                6.7 +/-    2.12      12.3 +/-    2.12  0.070 / 0.150
G14     336.6          70.3                9.0 +/-    0.75       9.5 +/-    0.75  0.080 / 0.160
G18     110.5          21.4                8.6 +/-    1.28      18.3 +/-    1.28  0.090 / 0.150
G22     305.5          17.8                7.8 +/-    1.28      18.1 +/-    1.28  0.100 / 0.140
G25     88.9           13.1                8.6 +/-    1.39      22.4 +/-    1.39  0.050 / 0.050
G31     176.1          51.9               10.8 +/-    0.70      13.3 +/-    0.70  0.050 / 0.050
G32     19.4           61.8                7.5 +/-    0.49       8.4 +/-    0.49  0.050 / 0.060