PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-05:42:40
G01     313.7          26.9                5.1 +/-    2.34       9.6 +/-    2.34  0.030 / 0.010
G10     94.5           47.6                4.0 +/-    0.81       5.2 +/-    0.81  0.030 / 0.020
G11     289.8          28.9                6.1 +/-    1.17      10.9 +/-    1.17  0.110 / 0.190
G14     337.7          70.2                5.6 +/-    0.61       5.9 +/-    0.61  0.110 / 0.230
G18     110.0          23.0                3.8 +/-    1.62       7.8 +/-    1.62  0.110 / 0.260
G22     305.9          19.5                5.5 +/-    2.17      12.2 +/-    2.17  0.110 / 0.210
G25     86.7           13.0                5.1 +/-    1.02      13.2 +/-    1.02  0.050 / 0.060
G31     172.5          54.5                9.3 +/-    0.63      11.2 +/-    0.63  0.040 / 0.050
G32     23.7           59.9                3.3 +/-    0.44       3.7 +/-    0.44  0.090 / 0.060