PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-04:28:10
G01     318.2          19.5                5.9 +/-    2.08      13.1 +/-    2.08  0.130 / 0.250
G08     254.3          12.3                9.8 +/-    2.32      26.0 +/-    2.32  0.140 / 0.320
G10     81.2           53.3                5.1 +/-    0.93       6.2 +/-    0.93  0.050 / 0.040
G11     299.7          25.8                5.9 +/-    2.04      11.4 +/-    2.04  0.050 / 0.060
G14     307.7          71.6                4.8 +/-    0.69       5.0 +/-    0.69  0.110 / 0.320
G18     102.5          29.3                5.5 +/-    1.35       9.8 +/-    1.35  0.150 / 0.350
G22     301.3          12.2                6.2 +/-    1.94      16.5 +/-    1.94  0.030 / 0.030
G31     176.0          43.5                6.9 +/-    0.88       9.6 +/-    0.88  0.030 / 0.050
G32     7.6            67.0                5.2 +/-    0.50       5.6 +/-    0.50  0.040 / 0.050