PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-03:27:50
G01     249.7          34.7                7.0 +/-    1.00      11.2 +/-    1.00  0.040 / 0.050
G03     315.8          42.6                4.7 +/-    1.84       6.6 +/-    1.84  0.030 / 0.040
G11     234.8          12.3                4.9 +/-    3.73      13.0 +/-    3.73  0.050 / 0.100
G14     62.6           38.9                3.9 +/-    0.57       5.7 +/-    0.57  0.070 / 0.130
G16     165.2          17.4                5.3 +/-    2.47      12.4 +/-    2.47  0.060 / 0.120
G22     304.0          66.3                4.9 +/-    0.69       5.3 +/-    0.69  0.060 / 0.130
G23     286.7          18.6                6.0 +/-    1.92      13.6 +/-    1.92  0.050 / 0.110
G26     139.8          37.5                7.5 +/-    1.02      11.4 +/-    1.02  0.050 / 0.090
G31     39.8           60.5                3.9 +/-    0.41       4.4 +/-    0.41  0.030 / 0.030
G32     76.8           24.9                5.2 +/-    1.37      10.2 +/-    1.37  0.030 / 0.030