PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-21:27:40
G01     319.0          17.8                9.5 +/-    1.01      22.0 +/-    1.01  0.090 / 0.180
G08     257.0          13.2               11.7 +/-    1.74      30.4 +/-    1.74  0.100 / 0.190
G10     78.8           54.0                9.7 +/-    0.46      11.7 +/-    0.46  0.050 / 0.070
G11     303.2          23.3                9.2 +/-    1.58      18.8 +/-    1.58  0.050 / 0.070
G14     298.7          70.9               10.4 +/-    0.57      10.9 +/-    0.57  0.050 / 0.050
G18     102.1          28.1               10.5 +/-    0.96      19.2 +/-    0.96  0.050 / 0.060
G31     178.9          39.2               15.1 +/-    1.08      22.2 +/-    1.08  0.050 / 0.040
G32     2.5            68.5               10.8 +/-    0.61      11.5 +/-    0.61  0.040 / 0.040