PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/17-22:42:40
G01     318.3          20.1               10.3 +/-    3.68      22.7 +/-    3.68  0.270 / 0.380
G08     253.4          11.9               10.7 +/-    2.00      28.7 +/-    2.00  0.190 / 0.470
G10     83.9           51.3                9.9 +/-    0.92      12.3 +/-    0.92  0.190 / 0.320
G11     299.8          24.9                9.7 +/-    1.30      19.1 +/-    1.30  0.160 / 0.260
G14     304.6          71.1                9.5 +/-    0.40      10.0 +/-    0.40  0.040 / 0.050
G18     300.9          43.6                9.9 +/-    1.22      13.6 +/-    1.22  0.040 / 0.050
G20     107.5          27.2               11.2 +/-    2.36      20.8 +/-    2.36  0.150 / 0.220
G22     301.9          11.4                5.5 +/-   12.45      14.9 +/-   12.45  0.090 / 0.200
G31     175.9          44.3               11.8 +/-    1.06      16.0 +/-    1.06  0.150 / 0.390
G32     13.4           65.3                7.9 +/-    0.76       8.6 +/-    0.76  0.160 / 0.410