PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-02:12:50
G01     316.1          23.4                8.5 +/-    2.25      17.3 +/-    2.25  0.050 / 0.060
G10     88.8           50.2               11.2 +/-    0.70      14.1 +/-    0.70  0.050 / 0.060
G11     295.3          27.1                8.7 +/-    1.27      16.2 +/-    1.27  0.110 / 0.210
G14     323.9          71.3               10.8 +/-    1.04      11.4 +/-    1.04  0.090 / 0.190
G18     107.1          24.8               11.7 +/-    1.41      23.0 +/-    1.41  0.030 / 0.030
G22     303.6          14.9                9.4 +/-    2.87      23.3 +/-    2.87  0.030 / 0.030
G25     92.2           11.3               11.7 +/-    1.73      31.8 +/-    1.73  0.160 / 0.320
G31     176.3          47.8               15.5 +/-    2.12      20.1 +/-    2.12  0.120 / 0.380
G32     13.8           64.3                8.1 +/-    0.64       8.9 +/-    0.64  0.130 / 0.430