PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-05:43:00
G01     314.7          25.5                2.5 +/-    2.67       4.8 +/-    2.67  0.030 / 0.050
G10     92.1           48.8                3.0 +/-    0.78       3.9 +/-    0.78  0.030 / 0.040
G11     291.8          28.5                2.7 +/-    1.98       4.9 +/-    1.98  0.110 / 0.140
G14     332.3          70.8                3.6 +/-    0.84       3.8 +/-    0.84  0.120 / 0.150
G18     108.5          24.4                2.7 +/-    1.15       5.3 +/-    1.15  0.070 / 0.160
G22     305.1          18.2                3.7 +/-    1.61       8.5 +/-    1.61  0.080 / 0.140
G25     88.5           12.3                3.0 +/-    1.21       7.9 +/-    1.21  0.090 / 0.280
G31     173.2          52.4                6.6 +/-    1.47       8.1 +/-    1.47  0.100 / 0.280
G32     21.1           61.3                3.1 +/-    0.60       3.5 +/-    0.60  0.040 / 0.040