PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-20:28:10
G01     319.4          17.5                7.2 +/-    1.41      16.9 +/-    1.41  0.040 / 0.050
G08     255.9          13.5                9.2 +/-    2.03      23.7 +/-    2.03  0.040 / 0.050
G10     79.2           53.0                8.6 +/-    0.62      10.4 +/-    0.62  0.120 / 0.190
G11     302.6          23.6                8.6 +/-    2.52      17.4 +/-    2.52  0.130 / 0.200
G14     295.6          70.8                9.0 +/-    0.61       9.4 +/-    0.61  0.170 / 0.290
G20     104.9          29.4                8.7 +/-    1.19      15.5 +/-    1.19  0.150 / 0.300
G31     177.9          39.5               12.1 +/-    1.45      17.8 +/-    1.45  0.090 / 0.230
G32     5.9            68.0                9.4 +/-    0.72      10.1 +/-    0.72  0.090 / 0.210