PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-20:57:40
G08     273.2          20.4               12.8 +/-    2.00      27.9 +/-    2.00  0.380 / 0.420
G10     47.0           61.2               10.4 +/-    0.77      11.7 +/-    0.77  0.240 / 0.230
G11     315.3          13.0                8.0 +/-    3.43      20.7 +/-    3.43  0.130 / 0.150
G14     254.6          62.6               12.7 +/-    0.55      14.1 +/-    0.55  0.090 / 0.160
G18     86.0           39.5               10.0 +/-    0.78      14.7 +/-    0.78  0.270 / 0.320
G24     43.3           15.9                9.8 +/-    3.17      23.8 +/-    3.17  0.260 / 0.240
G27     235.6          19.9               14.3 +/-    3.78      31.5 +/-    3.78  0.030 / 0.020
G31     181.8          21.1               15.5 +/-    2.00      33.3 +/-    2.00  0.020 / 0.020
G32     304.1          75.4               11.4 +/-    0.61      11.7 +/-    0.61  0.050 / 0.040