PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-21:58:00
G01     244.9          34.4               10.2 +/-    1.13      16.4 +/-    1.13  0.040 / 0.040
G03     316.0          44.7                7.1 +/-    1.12       9.5 +/-    1.12  0.030 / 0.040
G11     238.5          10.0                9.6 +/-    2.29      26.9 +/-    2.29  0.050 / 0.090
G14     58.4           43.4                8.0 +/-    0.56      11.0 +/-    0.56  0.050 / 0.080
G16     159.9          21.2               11.2 +/-    1.74      23.9 +/-    1.74  0.110 / 0.280
G22     301.8          66.7                6.9 +/-    0.76       7.4 +/-    0.76  0.090 / 0.240
G23     288.5          21.0                8.5 +/-    2.23      18.2 +/-    2.23  0.100 / 0.210
G26     133.9          40.1               11.1 +/-    0.60      16.1 +/-    0.60  0.090 / 0.280
G31     41.4           55.6                8.2 +/-    0.40       9.7 +/-    0.40  0.060 / 0.070
G32     79.6           20.0                7.7 +/-    0.75      17.0 +/-    0.75  0.040 / 0.060