PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-22:58:00
G01     320.6          13.4              -18.4 +/-   24.56     -47.5 +/-   24.56  0.170 / 0.420
G08     260.6          15.9               12.5 +/-    2.08      30.5 +/-    2.08  0.160 / 0.490
G10     71.2           55.6               11.2 +/-    0.91      13.3 +/-    0.91  0.140 / 0.210
G11     306.9          21.1                9.3 +/-    2.37      19.9 +/-    2.37  0.150 / 0.310
G14     279.8          68.8               11.7 +/-    0.44      12.5 +/-    0.44  0.040 / 0.050
G18     308.4          37.6               11.1 +/-    2.30      16.9 +/-    2.30  0.040 / 0.060
G20     100.5          32.9               12.4 +/-    1.09      20.5 +/-    1.09  0.100 / 0.260
G27     229.1          12.7                9.6 +/-   20.51      25.2 +/-   20.51  0.080 / 0.280
G31     177.4          35.9               15.3 +/-    1.24      23.8 +/-    1.24  0.140 / 0.320
G32     357.5          70.8               10.8 +/-    0.69      11.4 +/-    0.69  0.130 / 0.300