PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-05:27:50
G01     299.0          37.6                6.3 +/-    2.66       9.5 +/-    2.66  0.030 / 0.040
G10     113.5          35.3                6.1 +/-    0.57       9.6 +/-    0.57  0.030 / 0.040
G11     270.2          29.0                5.7 +/-    1.96      10.2 +/-    1.96  0.040 / 0.070
G14     16.1           61.8                5.1 +/-    1.03       5.7 +/-    1.03  0.040 / 0.060
G18     121.7          9.8                 3.7 +/-    2.39      10.4 +/-    2.39  0.050 / 0.070
G22     312.2          32.9                3.8 +/-    0.57       6.4 +/-    0.57  0.050 / 0.080
G25     69.3           17.0                5.6 +/-    1.73      13.3 +/-    1.73  0.070 / 0.050
G31     156.5          73.1                7.0 +/-    0.40       7.3 +/-    0.40  0.080 / 0.080
G32     43.0           47.9                4.7 +/-    0.94       6.1 +/-    0.94  0.120 / 0.120