PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-03:57:50
G01     318.6          18.6                4.6 +/-    5.21      10.5 +/-    5.21  0.140 / 0.520
G08     255.2          12.8                7.5 +/-    8.36      19.5 +/-    8.36  0.120 / 0.340
G10     79.6           53.9                0.4 +/-   10.43       0.5 +/-   10.43  0.150 / 0.200
G11     300.8          25.2                6.6 +/-    1.85      12.9 +/-    1.85  0.140 / 0.230
G14     304.0          71.5                5.9 +/-    1.75       6.2 +/-    1.75  0.030 / 0.040
G18     101.6          29.9               -7.7 +/-   47.58     -13.6 +/-   47.58  0.030 / 0.030
G22     300.7          11.3                4.1 +/-    9.91      11.1 +/-    9.91  0.050 / 0.060
G31     176.5          42.1               14.9 +/-   17.94      21.0 +/-   17.94  0.040 / 0.060
G32     4.8            67.9                1.2 +/-    9.27       1.3 +/-    9.27  0.050 / 0.070