PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-18:43:10
G08     278.3          21.9               11.6 +/-    1.73      24.3 +/-    1.73  0.090 / 0.200
G10     42.9           60.5               26.1 +/-    0.29      29.5 +/-    0.29  0.100 / 0.190
G14     243.1          53.9               11.5 +/-    0.60      13.8 +/-    0.60  0.050 / 0.070
G20     85.9           41.2               10.0 +/-    0.57      14.3 +/-    0.57  0.050 / 0.060
G21     152.6          25.9               10.5 +/-    1.78      20.0 +/-    1.78  0.030 / 0.030
G24     46.0           18.4                7.5 +/-    0.64      17.2 +/-    0.64  0.030 / 0.040
G27     240.2          23.6               10.3 +/-    2.05      20.7 +/-    2.05  0.080 / 0.150
G31     180.4          19.5               10.9 +/-    1.65      24.2 +/-    1.65  0.080 / 0.160
G32     298.2          77.1               10.3 +/-    0.83      10.6 +/-    0.83  0.110 / 0.280