PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-22:58:10
G01     318.3          19.9                9.7 +/-    1.39      21.4 +/-    1.39  0.190 / 0.260
G08     253.6          12.0               14.3 +/-   17.09      38.2 +/-   17.09  0.160 / 0.270
G10     83.6           51.4               10.2 +/-    1.12      12.6 +/-    1.12  0.120 / 0.210
G11     300.0          24.8               10.6 +/-    0.95      20.9 +/-    0.95  0.190 / 0.290
G14     303.8          71.0               10.6 +/-    0.82      11.1 +/-    0.82  0.040 / 0.040
G18     301.2          43.4               10.3 +/-    4.17      14.3 +/-    4.17  0.040 / 0.050
G20     107.4          27.4               11.0 +/-    1.83      20.4 +/-    1.83  0.260 / 0.290
G22     301.8          11.3                1.9 +/-    9.78       5.2 +/-    9.78  0.260 / 0.330
G31     175.8          44.3               13.4 +/-    1.28      18.3 +/-    1.28  0.100 / 0.090
G32     13.3           65.4                9.7 +/-    0.50      10.5 +/-    0.50  0.150 / 0.090